Amazon.com: REES52 Lilypad Arduino - Lilypad Development Main Board Arduino USB ATmega32u4 (Replaces/Upgrade for The ATmega328P) Arduino Designed for e-Textile and Wearable Projects! : Toys & Games
5X LilyPad Arduino Multi-Pack- LilyPad Development Main Board Arduino USB ATmega32u4 (replaces/upgrade for the ATmega328P) - The silver dollar sized Arduino (5Pcs) - Walmart.com
LilyPad Arduino USB-ATmega32U4 Board – PCB HERO
Lilypad USB Plus - DEV-14631 - SparkFun Electronics