I did this tutorial for another site, so I thought it might be helpful to some of my followers here too. I have un-mounted about 90% of my stamps (and I have hundreds) and made them into cling-mount stamps to be used with a clear acrylic block. I store them in CD cases in an old CD tower that I bought at the thrift store. Here is a picture of that real quick.
Here are some pictures of me unmounting a Valentine stamp from Studio G this morning.
Peel off the red rubber from the original wood block and foam:
You want to make sure to get as much of the old foam off as possible, but it doesn't have to be completely clean. Just so that no bulky pieces are left on it.
This is a picture of the EZ Mount foam packaging and instructions. I brought this into Roberts Crafts, a local Utah chain, when I worked as the buyer there. But I don't know if they still have it. I've never seen it at any major chain like Hobby Lobby, JoAnn or Michaels. I bought mine on Ebay, and I've seen it on a few online shops. The manufacturer sells it direct, but you can probably get a better deal on another site.
Stick your stamp to the extremely sticky side of the EZ Mount foam (the other side is not sticky--it is the cling side). I'm using a small piece left from my last sheet rather than using a new sheet here.
Trim the excess foam off of your stamp. Make sure that you don't really care about the scissors you use. They will be very sticky afterward. I used to have a pair of craft snips that worked really well, but I lost them. So I just use some dollar store scissors now.
Your trimming doesn't need to be perfect, as you can see. As long as it covers the majority of the stamp.
Voila, now you can use it to cling to your acrylic blocks! Easy Peasy.
I have also heard of people just using tacky glue for the back instead of purchasing EZ Mount. The problem I would have with that is that sometimes my block gets ink on it and then I stamp and there is an ink blot on the side of my stamp. The EZ Mount keeps it raised off of the block and prevents some of that. And, you have to keep applying the tacky glue. It doesn't stay on there forever.
Here is another tutorial on Sunday International (the manufacturer). Not sure if they ship overseas, but the name of their company would indicate that they should ;)
Please also be aware that if you use EZ Mount, you should NEVER store them on acetate sheets. EZ Mount has a chemical makeup that makes a permanent bond with acetate, making it nearly impossible to separate them!
Here are some pics of one of my Stampin Up sets that I converted.Inside of case:
Hope this was helpful for someone.