Ebay offers Funko Bitty POP! Teenage Mutant Ninja Turtles Figures Collector Pack 12pk for $12.80 (reg. $31.99) with free shipping. 

Product Description:
"Your favorite Teenage Mutant Ninja Turtles Pops! have been mutated into Bitty Pops! Expand your collection with this Collector Pack featuring Bitty Pop! figures of your most beloved half-shell heroes! This exclusive 12-pack includes Bitty Pop! Leonardo, Bitty Pop! Michelangelo, Bitty Pop! Donatello, Bitty Pop! Raphael, Bitty Pop! April O’Neil, Bitty Pop! Splinter, Bitty Pop! Shredder, Bitty Pop! Rocksteady, Bitty Pop! 8-Bit Raphael, Bitty Pop! 8-Bit Donatello, Bitty Pop! 8-Bit Leonardo, and Bitty Pop! Baxter Stockman. Bitty Pops! are packaged in hard acrylic cases with detachable bottom lids. Detachable bottom lids double as acrylic bases, to which the Bitty Pop! figures are adhered. Vinyl figures are approximately 0.9-inches tall.