Guess what this is?

Ok pretty ordinary day, work, home ,shopping, home, ironing, dinner, now blip time. Weather pretty ordinary too, grey and overcast.

Anyway, took lots of pictures, but decided to go with this one.

Can anyone guess, well it's actually the inside of a tall candle holder, when it's alight it gives a really pretty glow through it's shell like casing. I probab;y should have tried the same shot with a candle.