PrintMeBot alternatives

I liked what a saw so far. A couple small hiccups, one being I cannot find where to use previous designs. The other is trying to adjust the background color of a t-shirt using a mobile device was moving the entire webpage making is difficult to get the right color. That's all so far but I'm only beginning to try this designer out.

Impressive times we live in! Who would have thought this works this well in the 1990s when I did my first steps into the world wide web.