Pet waste collection bags, which can visually remind a user of the low supply of bags, are provided. The invention utilizes different color(s) for the last few bags in a roll of pet waste collection bags to notify the user when the last few bags are left in the pet waste collection bag dispenser. When the user sees the bag color change, they know it is time to insert a new roll of pet waste collection bags into the bag dispenser.

A leash-mountable clip assembly comprises a clip rotatably connected to a disk via a swivel member. The clip assembly is configured to be adhered to a leash at the disk, such that the clip rotates relative to the leash. The clip assembly is configured to hold waste bags. A system for assembling the leash-mountable clip assembly comprises a base and a flare tool having an eyelet flare tip. The flare tool defines a tool opening for receiving a portion of the clip during use. A method of assembly involves positioning components on the base and using the flare tool to create the rotatable connection between the disk and the clip.

A dog waste bag carrier device is provided. The device is designed to provide a sanitary, discreet, and hands-free solution for temporarily storing used dog waste bags until proper disposal is available. The device comprises a collapsible, accordion-style body made from silicone for flexibility, durability, and ease of cleaning. A base section is attachable via snap-fit or twist-lock mechanisms and serves as an optional secondary compartment for treats, water, or additional waste bags. The lid assembly includes a two-section design, with one section securing to the body and the other housing a roll of waste bags, which are dispensed through an integrated slot. The waste bags are preferably biodegradable and may include an odor-barrier film or fragrance for enhanced user experience. Silicone gaskets ensure an airtight and watertight seal to prevent odor and leakage. The device attaches easily to a leash, belt, or bag via a carabiner, for convenient transport.