I've always LoVeD stickers! I had sticker books as a child, and occasionally as an adult (my latest is the Minions one but don't tell anyone!)
There's something very satisfying about stickers, and the planner craze gives adult sticker lovers a legitimate excuse to use them :) I don't have a planner as such; I have two moleskines, one to keep a diary and one as a diary so I know where I'm supposed to be etc.
But that didn't stop me from creating some stickers from blank labels using many of the tiny Lavinia Stamps. You'll find my step by step over here - http://laviniastamps.com/making-stickers/