Probably my favourite tealight. Designed to look like a flame and when you look at it from the bottom you can even see tealight in there. I probably made like 50 iterations of this one from card ones over blue foam models to resin and plaster casts. The one you see here is a 3D model of what is likely the final version of this one and if you want to see the whole process of it being designed keep an eye on my Behance page where I'm planning to show it at some point.
As always I tried to keep it minimalist but practical so it fits in pretty much any modern environment while being practical having grooves for wax overspill if made from suitable material and with a hole on the bottom for easy extraction of tealights themselves.
They can be used without "base pads" but it depends on where you want to put them and what will you print them in. In general, I use them without it and only make pads from them if I'm giving them to someone either laser cut them or cut them with a scalpel from cork or print them from TPU. Also and I always forget to mention this if you do use base pads it will make tealights stackable.