-- Base blank DSA keycap set: $21.00 (signatureplastics.com)
-- Teensy 2: $16 (pjrc.com)
-- Acrylic materials: ~$11, varies by source
-- Acrylic laser cutting: 7.5 minutes at $3/min (varies by thickness of acrylic)
+- Base blank DSA keycap set: $23.00 (signatureplastics.com)
+- Teensy 2: $16, $3 shipping (pjrc.com)
+- Acrylic materials: ~$16, varies by source
+- Acrylic laser cutting: 7.5 minutes on a 100W Epilog laser; varies by source
+- USB Mini-B cable: $5, various sources