I've got a couple of cute dinosaur eyelets I got in a scrap back. How do i use them? Do I need a special tool or can I just hit them with a hammer? I don't want to buy something for 2 tiny eyelets! I've never used them before (CM doesn't stock them) so I'm wary of them being non-acid free and ruining my pages. Or should i just buy loads of others to make it worth buying a special tool? 
