but I do have a Harbor Freight double barrel rock tumbler. I made up a batch of 30 ml of 12mg nic 50/50 using FA Vanilla Cupcake/Hangsen French Vanilla Ice Cream at 15% combined in a blue glass bottle. I gave the mix a 1 hour hot bath in a sealed insulated thermos and then wedged the bottle into the tumbler barrel close to the outer edge so it couldn't move and turned the tumbler on. The tumbler rotates about 45 times a minute and has a pretty good vibration to it. It's been tumling about 7 hrs. now and I'm about ready to take it out and give it a test vape. Has anyone else ever tumbled their e-juice to get it blended?? I'm just trying to make do with what I've got.