I noticed in Asda today they've got some kids tool sets, gloves, watering cans, seeds, animal shaped markers, kneeling pads, tool belts and they're very reasonably priced.
The set of tools is quite sturdy - metal with wooden handles, 2 mini trowels and a fork for £1.97. I think the watering can was the most expensive item at £3.94.
Just thought I'd mention it because last time I looked at children's tools in a garden centre they were stupid prices - especially if they go though a fad and only use the stuff for a few weeks!
Some of my own earliest and happiest memories are of 'helping' my Dad in the garden with my own trowel etc. so I think it's great to get 'em started at it from an early age!
I know what all my friends children will be getting for their birthdays this summer!