Rub-ons are a cheap scrapbooking alternative to stickers.  Just is the name says you rub them unto you scrapbook papers.  Unlike stickers, rub-ons don't have a very noticeable edge and can can almost look like they were always part of the scrapbook papers you put them on. 

My first rub-on ever was from the cheap scrapbooking dollar bin at a major craft store.  When I tried to use it on my scrapbooking memories, it didn't work.  I was so upset I didn't buy a new one for 2 years.  Luckily, I tried again and after seeing how rub-ons should work I got hooked.  We only sell quality rub-on scrapbook brands so you won't  have the experience I did.