Actually it's not nasty at all. :) These bottles once held my favourite wine, Mateus Rose (oh, is that advertising?!). Every fortnight the bottles go in the recycling bin, but I'd like to know what to do with the corks. No rude answers please!
I was thinking of carrying out an experiment by putting some at the bottom of the plant pots beneath the compost. Hopefully, they will absorb and hold water therefore cutting down on time spent watering. I'll let you know how well it works, if it works at all. Does anyone have any other ideas for possible uses?