Nite Ize PetLit LED Collar Light 2 Pack

eBay - want_knott

Product category (collar charm) matches, Function (LED light) matches, Color (blue) matches perfectly, General form factor (small, roundish, compact) matches, Appears to be clip-on, consistent with a charm, Consistent with 'Blue LED Cat Collar Charm' product details

Nite Ize SpotLit Collar Light

BlueWater Outriggers

Exact color match (blue LED), Exact form factor match (circular/domed light), Functionality (LED collar light), Overall design and size are highly consistent

Windland High Observability LED Light for evening Pet Safety Clip on Charm Waterproof, Size: 1XL, Blue

Walmart - WINDLAND Co., Ltd

Blue LED light, Clip-on charm, Pet safety product, Matches 'Blue LED Cat Collar Charm' description