In the USA we have Elmer’s Glue. It is water based and good with wood and such. I have refelted both plastic and wood sets using Elmer’s glue. It works fine.
I imagine you should be able to get it in the UK. If not, I would look for something similar.
Good luck.
@itrenix As long as you don't use a ton of it. It will not bleed through the felt. The good thing about that glue is that it dries clear and is stronger than regular school glue. I tend to use a Q-Tip for application. I find that using a Q-Tip helps prevent putting on too much on the repair that is needed.
This is what I use for felt and to repair my wooden pieces.
What would be the best glue to reapply these?
I don’t want to damage the felt or wood.
Thanks all