The least complex tealight holder I have made so far. Plain minimalist and designed to fit in 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 for 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.

All mine printer at like .2 layer height with .6 nozzle.