LEGO 3in1 T Rex Toy - Dinosaur Toy Building Set for Kids, Boys & Girls, Ages 9+ - 3 Building Options, Transforms from T-Rex to Triceratops to Pterodactyl - Gift Idea for Christmas, Birthdays - 31151 is up for auction in Toys & Games. The current bid is $10.50, 78% below the $48.00 MSRP, in As Is condition. This auction has ended — similar items appear in live auctions regularly.