Kawaii deco anon here ^^
Recently ive purchased a sheet o super cute 3d stickers, however they've started to peel off at the edges, particularly the bigger ones like the ice cream cone :/
The same is happening to the ones on my phone. Is there any way to fix them or are the stickers simply no good or not usable for handheld devices?
Depending on how permanently you want them on there, you could always try and seal them in some way, maybe a Mod-Podge like spray (but please do some experimenting first!!)
You may want to try asking /cgl/ as well if you haven't already, but don't make a new thread or they'll tear you a new one. Try the help thread, or a decora or craft thread if one's up. Check the catalog.
those stickers are just backed by regular double sided tape.
you want to replace those with industrial super strong ones from ebay.
just peal them off, scrap off or pull away the original tape layer, then put on the super strong ones to cover the surface, then trim off the edges with a fine scissors or use cutter knifes.
also, clean the surface you are sticking to with alcohol first before sticking them on again.
this will give you a permanent stick.