I'm assuming that this is the plastics?
If so, just cut them back off with your hobby knife and re-attach them using plastiweld.
If it's the metals, you'll need to cut them free - very carefully - and drill some small holes for pinning. I actually know a place online you can go for drill bits in all sizes, but the name will have to wait until I get home after work. Sorry.
In any case, you just drill a hole that's big enough to get a staple into & use that to pin it on.
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