Walmart has the MEGA BLOKS Build ‘N Create Set with 250 Colorful Building Blocks for only $18.52! (Reg. $50) Your toddler can put their imagination to work with our Build ‘n Create building set. They can build everything from cute animals to towering buildings and so much more when they use 250 big building blocks. The perfect fit for little hands, these colored blocks are easy-to-stack and easy-to-grip so your little one can develop their fine motor skills.