Transformers Rise of the Beasts Battle Changers! Bumblebee, Optimus Prime, and Rhinox! 

These three each cost about $10 and are very easy to transform (except Bumblebee's chest doesn't stay locked in). I would definitely recommend Optimus and Rhinox for the price.
#transformers #riseofthebeasts #bumblebee #optimusprime #toysforkids