Glass bottles you can fit a d20 into? UK

This is a bit of a shot in the dark, but wanted to give it a go. My husband's birthday is coming up and I thought I would try and DIY a table lamp filled with his dice. I thought this would be a nice way to show off his dice and not add to the clutter in the house.

I originally wanted a mason jar lamp attachment, but for the life of me I cannot find these in the UK - best I can do is an attachment that can connect to different size bottles (think wine bottle or gin bottle). The trouble is, any of the bottles I've tried are just a slight bit too small to fit D20s in. The lamp attachments I found can be adjusted to fit different bottle sizes, so If I can find the right one I'll be winning.

Does anyone know of any alcohol bottles that could fit a d20 in? Preferably a clear bottle, but anything not too opaque could work - thanks!