Neat waterproof lithium cell holder hack.

I forgot to mention the bit about drilling a 1mm hole in the end of the LED dome for the wires to go through.
This is a really simple and neat hack that allows you to use a common waterproof led vase light to make a waterproof battery holder for a standard copper wire LED string. These holders can usually take two CR2032 lithium cells, although I tend to recommend just using one. They should also be OK with LIR2032 rechargeable lithium button cells. The copper string LED lights are inherently waterproof.

Here's a general ebay search link for the waterproof lights:-
https://www.ebay.com/sch/i.html?_from=R40&_nkw=waterproof+led+vase+light&_sacat=0&LH_BIN=1&_sop=15

And here's a general search link for the copper wire LED strings in various lengths:-
https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2334524.m570.l1313.TR0.TRC0.A0.H0.TRS1&_nkw=copper+wire+led+10m&_sacat=0&LH_TitleDesc=0&_sop=15&_osacat=0&_odkw=copper+wire+led+10m&LH_BIN=1

If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.