Votive candles are among the most used candles of any type. They're actually a hybrid between a pillar candle
and a container candle
in that, before they're burned, they're free-standing, usually cylindrical candles (just like a pillar,) but once they're lit, they generally melt completely enough to take the shape of the votive holder that they're placed in (like a container candle.)
Votive candles can be made very simply using paper cups as molds or with molds and wick pins. (You can also use combinations of both)
Like pillar candles, votives can be made in many different variations:
I'm putting a votive candle into the stained glass votive holder.