I found a bunch of stickers and embellishments on clearance at Hobby Lobby at the end of the scrapbook aisles as well as in their usual clearance display. You really have to dig through the rows because they usually just pile on items to one hook.
The Paper Studio - Hand Drawn 1" Uptown Flair Alphabet Stickers - 4 sheets - Was $3.99 - Now $2.00
The Paper Studio - Chalk Family Tree - 23 pieces - Now $1.75
Marvel Hulk Smash Stickers - 1 embellishment set and 2 sticker sheets - Was $3.99 - Now $1.43
Jolees - Football Helmets - 12 pieces - Was $3.99 - Now $1.43
Disney Princesses - Princess Aurora Dimensional Stickers - 10 pieces - Was $4.99 - Now $1.79