Stand for sign with 90° point

I made this small stand to hold upright the small metal "MINES" sign, used to mark mine fields, in my display case. It will hold any similar sign, with a 90° point at the bottom, up to 1/8" thick.

Specs:

• Dimensions: 2.5"W x 0.963"D x 1.5" high
• Volume: 0.5 cubic inches
• Weight: ~0.02 pounds