go post this under props you might get some more help. lights are hard to install if you dont have any experience in wiring or circuitry. However, esp at this time of year they have led battery lit strands at michaels with small leds. i would put them underneath colored fabric to light them up.
Adelheid (KHR!)- 85% done
Fem!Austrian War Succesion France (Hetalia/Nyotalia)- 10% done
Fem!Izaya (Drrr!)- 90% done
Magent!Teto (Vocaloid)- 95% done