Made keychains using acrylic keychain blanks, and used a transparent vinyl over the whole thing to make it more sturdy and keep the color from rubbing off the printed vinyl! : r/cricut
Acrylic Blank Keychain Tutorials - YouTube
Sublimation On Acrylic: Easy Guide and Top Blanks! - Jennifer Maker
How to Apply Rhinestones to Acrylic Blank Keychains - YouTube