Adafruit Universal USB / DC / Solar Lithium Ion/Polymer charger [bq24074] : ID 4755 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits
TP4056 - Micro USB 5V 1A Lithium Battery Charger Module [TP4056-modules] - US $0.80 : HAOYU Electronics : Make Engineers Job Easier
TP4056 (Micro USB with Current Protection) 1A Li-ion Battery Charging
TP4056 - Micro USB 5V 1A Lithium Battery Charger Module [TP4056-modules] - US $0.80 : HAOYU Electronics : Make Engineers Job Easier