Unfortunately, I couldn't figure out how to override KiCAD's layer colors for the 3D preview (nor did the internet help), but here's the "final" version I sent to OSHPark shortly before Christmas:
I also ordered a batch of parts from Digikey:
Code:


I also ordered a batch of parts from Digikey:
Code:
Screw terminals ED2580-ND 4 @ $0.73 = $2.92
5V regulator 296-39011-5-ND 1 @ $2.01 = $2.01
10nF caps, radial BC2662CT-ND 3 @ $0.15 = $0.45
220ohm 0805 0.4W res RHM220KCT-ND 2 @ $0.10 = $0.20
2.5mm SMD jack CP-2523SJCT-ND 2 @ $0.96 = $1.92
2.7Kohm 0805 0.4W res RHM2.7KKCT-ND 2 @ $0.10 = $0.20
Clear red 0805 LED 732-4985-1-ND 2 @ $0.17 = $0.34
1Kohm 0805 0.4W res RNCP0805FTD1K00CT-ND 2 @ $0.10 = $0.20
100nF caps, radial 399-9870-1-ND 2 @ $0.25 = $0.50
1uF caps, radial 445-173583-1-ND 2 @ $0.32 = $0.64
Al elec 1mF 35V cap 493-1085-ND 2 @ $0.67 = $1.34
Stacking Arduino pins 1528-1074-ND 2 @ $1.95 = $3.90