The Micro printbed sticker
The sticker on the printbed of The Micro is made from BuildTak. Information on ordering replacements can be obtained by requesting a price list from firstname.lastname@example.org. BuildTak also sells sheets on their website, please order size 4.5"/114mm. Those are slightly smaller than the original stickers from M3D but still big enough for The Micro.
There is also a video of how to Replace printbed sticker