These Melissa & Doug reusable sticker pads are as low as $3.99. We have one of these and they are especially good for travel.
They are add on items so if you have other shopping to do you might consider grabbing of these too.
Each one comes with a ton of stickers and different scenes. I spotted many different themes- animal, ballet, trains and more.
Head over to Amazon to take look.
Prices change quickly on Amazon so if you find the price has increased just check back.
These sticker pads are seriously the best. My daughter got on when she was 2, and she sat and played with it for over an hour, which was incredible! I keep a stash of them in the closet for kid birthday parties or for big sibling gifts when a new baby is born.