The guys from Instructables.com have come up with another great tip for the garden this time converting a 2 litre soda bottle into a self-watering planter. Sure, it's not exceptionally pretty - but it's cheap and does the job.

The pop bottle planter works on the idea of utilising a central wick that dips into the water reservoir beneath the plant and draws moisture up into the soil. It's quite ingenious - almost MacGyver-ish - and can be made solely from items that are no longer needed around the home.

If you end up making one of these please forward me some pics as I'd be keen to show the Tips 'n' Ideas community how they've been used.