Amazon.com: LEGO DUPLO Batman Batcave 10919 Action Figure Toy for Toddlers; with Batman, Robin, The Joker and The Batmobile; Great Gift for Super Hero Kids Who Love Imaginative Play (33 Pieces) :
Lego Duplo Cargo Train Action Bricks 105Pieces
BrickLink - Part 42389 : LEGO Duplo, Train Action Brick Intelli-Train with Tunnel Pattern [DUPLO, Train] - BrickLink Reference Catalog
Cargo Train 10875 | DUPLO® | Buy online at the Official LEGO® Shop US
BrickLink - Set 9200-1 : LEGO Duplo Toolo (Action Wheelers) Large Set [Educational & Dacta:DUPLO:Action Wheelers] - BrickLink Reference Catalog