What's Wrong with this Picture?

I love how creative my kids can be. At times they make me wonder, though.

This was Trista's latest invention. Here you see Tad ready to chug along in his Leap Frog train. Trista needed one more car to pull her puppy along, so she made one. The puppy fit nicely in this (clean) soft diaper, but how to attach him to the car in front? Easy! Tie 3 tampons together, putting 2 inside the car to anchor it and attach the third to the velcro on the diaper. Voila!

(The tampons were handy thanks to Aria who recently found a stash and discovered how much she enjoyed using them as a microphone before disassembling them.)