It's gonna be one of those super deluxe ones with four [relatively] big rubber tires and a built-in seat. Like this:

For the base, I'm going to use a 1:6 scale plastic folding chair by Dr. Figures:

Basically I have to extend the tops of the rear legs, add handlebars and add wheels. Here's my plan for making the handles:

Goooooooooooooo me!

For the base, I'm going to use a 1:6 scale plastic folding chair by Dr. Figures:

Basically I have to extend the tops of the rear legs, add handlebars and add wheels. Here's my plan for making the handles:

Goooooooooooooo me!