Frameless Photo Stand (Parametric)

UPDATE 6/19: v2.0 Now supports nearly thirty common coins for added weight!

This is a simple parametric frameless photo stand that uses (with its default values) only about 50-60mm of filament (about a penny or two) and holds up a photo for display without the use of a frame. It can be weighted with a coin by specifying one of nearly 30 built-in common coin types for USA, Canada, Australia, and Europe (e.g. US_25C for a quarter, and EU_50C for a euro 50c). If the coin you want to use isn't in