I found a bunch of stickers/embellishments dumped in a big pile in their clearance aisle (for me - the back of the store near the Home Fabrics). Some of the prices are just "okay" but the stickers seem to be discontinued. Every Joann's store has different stock/prices, so YMMV.
Me & My Big Idea - Nambi Sticks (Baby) - now $1.97
Disney Princesses Sticker Collections (6 sheets) - now $1.97
Paper House - England Stickers - now $1.97
Disney Mickey Mouse Stickers (1 sheet) - now $1.97
Disney Rapunzel Stickers (1 sheet) - 19pcs - now $0.97
Marvel Spiderman Stickers (1 sheet) - now $1.97