A method of manufacturing a toy finger skateboard may include inserting a flange portion of a toy finger skateboard truck into a flange receiver of a toy finger skateboard deck. The toy finger skateboard truck is moved such that a column portion of the toy finger skateboard truck is received by a through hole of the toy finger skateboard deck, and then, the method involves interacting with a top end of the column portion of the toy finger skateboard truck to affix the toy finger skateboard truck to the toy finger skateboard deck. A portion of the top end of the column portion may be cylindrical. The top end of the column portion of the toy finger skateboard truck may be welded to a seat portion of the toy finger skateboard deck, and the welding may include spin welding.

A toy finger board kit includes a board and at least one shoe. Each shoe includes a finger hole in an upper of the shoe and at least one bracket on a sole of shoe. The at least one bracket is configured to removably attach the at least one shoe to the board. In some instances, the board is formed by inserting a flange portion of a toy finger skateboard truck into a flange receiver of a toy finger skateboard deck. Then, the toy finger skateboard truck is moved such that a column portion of the toy finger skateboard truck is received by a through hole of the toy finger skateboard deck. Finally, a top end of the column portion of the toy finger skateboard truck is affixed to the toy finger skateboard truck to the toy finger skateboard deck.

The present invention discloses a system and method for making soft projectiles for use with toy and recreational firearms, the system and method comprising of a mold and a projectile material, the mold comprising of a first plate with one or more protrusions and a second plate with one or more cavities, the second plate mated with the first plate to form one or more soft projectiles.

The present invention discloses a polylactic acid composite and use thereof. The polylactic acid composite includes the following components: i) 50-85 parts by weight of polylactic acid; ii) 8 to 35 parts by weight of an inorganic filler; and iii) 0 to 8 parts by weight of a plasticizer; wherein the polylactic acid composite has an end carboxyl content of 12 to 51 molKOH/t. The present invention unexpectedly discovered through research that, by controlling an end carboxyl content of the polylactic acid composite within a range of 12 to 51 molKOH/t, the polylactic acid composite, under a condition of 60° C. and 60% humidity, with a test time of 30 days, has a ratio of a mass melt index MFI.sub.t=30 to an initial mass melt index MFI.sub.t=0 satisfying 3.5<η=MFI.sub.t=30/MFI.sub.t=0<5.1, which indicates that under the test conditions, the product has slow aging degradation, and the polylactic acid composite has a biodegradation rate greater than 90% after 12 weeks in the case where a thickness is 2.5 mm or less, and has suitable aging properties and excellent biodegradability.

An integrated multi-color animal chew toy and preparation process thereof, including selecting N types of rubbers used to form a product, wherein the rubbers have different colors and different hardness; selecting one type of rubber from the rubbers used to form the product, putting the rubber selected into a first mold, and performing mold forming to form a first molded product; putting part of the first molded product into a second mold, closing the second mold, and then injecting a second rubber selected from the rubbers used to form the product for mold forming to form a second molded product; putting part of the second molded product into a Nth mold, closing the Nth mold, and then injecting a Nth rubber selected from the rubbers used to form the product for mold forming, and then cooling to obtain the product completely.

Described are techniques for additive manufacturing of deformable objects. The techniques including a method comprising generating printing parameters for a deformable component. The method further comprises fabricating the deformable component by additive manufacturing, where a smart material is located at an articulation point of the deformable component, and where a base material is located at a static portion of the deformable component. The method further comprises supplying an environmental stimulus to the deformable component that causes the deformable component to transition from a first state to a second state.

A filament for 3-D printing of chewable toys and treats suitable for dogs and other domestic animals is made by preparing a mixture of plasticized thermoplastic with reinforcement agent, lubricating agent and preservative and then extruding the prepared mixture to form a filament. Embodiments may further include aroma enhancers, flavoring additives and nutritional additives in the mixture, alone or in combination.

The combination of 3D printing technology plus the additional dimension of transformation over time of the printed object is referred to herein as 4D printing technology. Particular arrangements of the additive manufacturing material(s) used in the 3D printing process can create a printed 3D object that transforms over time from a first, printed shape to a second, predetermined shape.

Novel polylactic acid biopolymer systems and methods of producing products with polylactic acid biopolymers are disclosed. Products produced according to the systems and methods disclosed herein have enhanced deflection temperature and improved mechanical performance when compared to conventional injection moulding processes. Systems and methods for compounding polylactic acid biopolymer and creating an object using a polylactic acid biopolymer by extrusion and injection moulding process are described.