This is a super simple fabric LED strip with 25 LEDs, LiPo battery power and an on/off switch.

Materials and Parts:

– non-synthetic base material such as cotton or silk (better for soldering on!)
– solderable conductive thread from Karl-Grimm:
>> https://www.etsy.com/listing/114198338/solderable-conductive-thread-thinner?ref=shop_home_active
– Tiny SMD LEDs:
>> https://www.sparkfun.com/products/11249
– LiPo battery:
>> https://www.sparkfun.com/products/10718
– LiPo socket with switch:
>> https://www.sparkfun.com/products/10085
– 10 Ohm resistor

Instructions:

– Using a sewing machine, sew two parallel lines of the solderable conductive thread to the fabric by zig-zaging over them with a regular (non-sythetic) thread.
– Solder on the LEDs.
– Cut the conductive thread on one of the leads and insert the 10 Ohm resistor.
– Sew and solder the LilyPower module.
– Plug the battery and turn on.
– Use stuffing or padding with translucent gauze fabric to diffuse the light if desired.