A convertible beverage container may have a base structure having an interior configured to hold a liquid, and a lid structure removably mountable on the base structure over an open top to selectively close the open top. The lid structure may have a mounted condition characterized by the beverage container being able to at least partially retain a liquid in the interior of the base structure and an unmounted condition characterized by the beverage container being unable to retain a liquid in the interior of the base structure. The beverage container may further include a handle structure directly and removably mountable on the lid structure such that the handle structure is mountable on the base structure via the mounting of the handle structure on the lid structure when the lid structure is mounted on the base structure.

A kit may have a plurality of components that include (A) a holder having a generally frustoconical shape, a first end that is open, a second end that defines a slot opening, a middle portion disposed between the first end and the second end, and a circumferential sidewall that (i) is generally closed except for a sidewall opening adjacent the slot opening and that (ii) defines an open interior; (B) an elastomeric handle having a retention portion and at least one finger grip; (C) an elastomeric sip top having a sip-top sidewall and a sip-top surface that define an interior cavity, and a nipple disposed on the sip-top surface; and (D) an elastomeric snack top having a snack-top sidewall, a snack-top surface, and a snack-access slot disposed on the snack-top surface.

A kit may have a plurality of components that include (A) a holder having a generally frustoconical shape, a first end that is open, a second end that defines a slot opening, a middle portion disposed between the first end and the second end, and a circumferential sidewall that (i) is generally closed except for a sidewall opening adjacent the slot opening and that (ii) defines an open interior; (B) an elastomeric handle having a retention portion and at least one finger grip; (C) an elastomeric sip top having a sip-top sidewall and a sip-top surface that define an interior cavity, and a nipple disposed on the sip-top surface; and (D) an elastomeric snack top having a snack-top sidewall, a snack-top surface, and a snack-access slot disposed on the snack-top surface.

A holding strap operable to hold a baby bottle in place while a baby or infant is nursing, the holding strap having two circular end portions, one affixed to cylindrical receptacle operable to hold a baby bottle. An elongated strap interconnects the circular end portions.

An elastomeric sip top may include a top surface and a side-wall structure. The top surface may have a nipple with an outer surface that extends upward from the top surface and that terminates in a nipple tip having a sealable aperture that extends from an exterior of the nipple tip to an inner cavity that is in fluid communication with the exterior when the nipple tip is deformed relative to a nominal state. The side-wall structure may have a top portion having a continuous circumference, a middle portion having two openings positioned opposite from each other, and a bottom portion having a front wall, a back wall and two side wings extending from opposite sides of the back wall. Each of the two side wings may have a fastening mechanism that cooperatively and releasably engages with corresponding fastening elements disposed on the front wall.

An exemplary baby bottle holder includes a first clamp member, a second clamp member, and a flexible arm interconnecting the first and second clamp members. The first clamp member engages and locks to the hand and wrist of the user, and includes a thumb finger lock and a hook and loop type locking mechanism. The second clamp member is for grasping a baby bottle, and includes an upper band to hold a main body of the bottle, and a lower circular structure to receive an end of the bottle. The flexible arm is made of a flexible and elastic material that allows the baby bottle holder to remain in a consistent shape and size. The user can wear the baby bottle holder and feed a baby with one hand only, and can thus utilize the other free hand for any desired purpose such as doing daily chores.