Christmas play-doh.
Keeps DS occupied for hours (so I love it!) but creates lots of little coloured well now bleurgh coloured as the colours have all merged bits everywhere.
So, please recommend a decent handheld rechargeable hoover as getting the Dyson out for a tiny bit of floor is just irritating - and wakes those still asleep in the bedroom next to where it is stored.
Cheaper the better naturally!