Welcome to the forum.
You may want to look through Fireshare for free files and as far as what we’ve made, this thread has a lot of examples.
For signs, in general I use 16 and 18 gauge flat signs. Others have gone 3-D by bending and welding designs with tabs/relief cuts.
You also need to decide if you will paint or powder coat, or sell raw metal. That’s a big decision labor wise.
Based on labor and shipping costs, if I were going to try to make money, I’d be looking at small, 2-D, paint it your self items first to test the water.
What have you done on your CrossFire Pro Today? - CrossFire ® PRO - Langmuir Systems Forum