My kids love stickers (like most!) and the act of peeling them off the sheet and carefully placing them onto a fresh piece of paper definitely helps to work on concentration, co-ordination and fine motor skills. It always troubles me, though, that the act of peeling off and sticking on is a little mindless and not terribly creative.
I've decided to put an end to that and each time the kids have got the stickers out this week, I've got the textas out for them as well to make sticker pictures. This has worked really well. Em is getting terribly good at creating play scenes for her mermaid and princess stickers and she is drawing quite elaborate garden pictures for her butterflies and flowers. And Ed, my two year old car-crazy boy, has gotten in on the act as well, drawing very simple roads for his cars to drive along.
They've been doing these pictures all week now and it has meant that more stickers are ending up on paper than on walls and doors. Which is a really good thing!