Quantity   Component name
1 × 30"x34" rigid-ish substrate I used 1/4" playwood, you could use 1" insulation foam, stretched canvass...
1 × 1/4" copper tape (~15') I used 1/2 or 2/3 of a 25' roll sold on amazon.com.
3 × Cans of spray Paint. Lighter colors in back, black in front for last layer.
1 × Polyurathane. Brush it on, 3-4 thin layers. Sand in-between each layer with 0-000 steel wool.
3 × Disposable brushes for applying polyurathane. 1 for each layer.
1 × 18-ish? guage braided wire. I used old thin speaker wire from an old surround sound system. As long as it fits inside the center hole in your receiver it's okay.
4 × (american) #8 3/4" bolts. 2 for leads, 2 for mounting picture hanging wire.
4 × (american) #8 nuts. Bolts need nuts?
8 × (american) #8 washers. 2 on each bolt, one in front of substrate, one behind.