I built a remote for the Duplo Train and my daughters had a blast with it. 100% original LEGO pieces, too. : r/lego
Creative Building Play with DUPLO and Wooden Train Tracks
Website with layout plans for LEGO Duplo trains? - Bricks
Duplo Layouts
Steam Train 10874 | DUPLO® | Buy online at the Official LEGO® Shop US
Lego Duplo Elevated Train Track | Ravnut | Flickr
Duplo Layouts
Amazon.com: LEGO DUPLO Town Train Tracks Expansion Set 10882 - Building Block Railway Toys for Toddlers, Duplo Train Collection, Learning Through Play, Kid-Friendly Gifts for Boys and Girls Ages 2-5 : Toys
LEGO 10882 DUPLO Town Train Tracks Building Set | Toymaster