Here’s a cool blue heart LED light that you can use as an example to make some water filled lights. It’d be really cool if it was RGB.
This is small gift i maked for my girlfriend for Valentine’s day. 🙂 Blue is her favorite color. So i decided make something that is blue.
First idea was to make copper sulphate crystals (I will place instructable how to make them later 😉 ) So i was started making crystals but i failed. 🙁 After two day