A small module for Foundry VTT that lets you mirror/flip token images with a HUD button. Can also configure the animation speed of the flip.
Install from the Foundry module installer or by inputting this manifest link in "Manifest URL" field: https://raw.githubusercontent.com/maclavell/token-mirror-button/master/module.json
Report any issues on the "Issues" page on this github or message me in the FoundryVTT Discord at Joms#1636.