GameStop offers a selection of Funko Pop figures for $8.98. Add them to your cart to drop the price to $5 each. Opt for in-store pickup to dodge the $5.99 shipping fee. A couple of best bets:
Funko Pop Preacher Jesse Custer for $5 (low by $2)
Funko Pop Power Rangers Blue Ranger for $5 (pictured, low by $3)
Use some marketing and merchandising tricks to make more money with less sweat.