Start with a clean wine bottle, labeled removed by either soaking, peeling or using Goof Off. (You can use any kind of bottle too, wine, sparkling water, any glass bottle you like:))
Fill the empty bottle with rocks, jewels, marbles, etc anything that will fit in.
Add in your citronella (or whatever you like, you can use different kinds) fill about 3/4 of the way.
Step 4Washer and Wick
Now add a washer on top and a replacement wick you can buy at Lowe's or Home depot. Tread the wick through the washer and then the washer just sits on top of the bottle.
You can decorate your bottle any way you would like, or not...I used a sticker that said "CHEERS"