After the exams, I had the kids engaging in what they called it the " in-thingy " among kids (even adults maybe) now. Rainbow Loom Bands.
Its is everywhere; in schools, bookshops, neighbourhood markets & even online purchases. Once the 2 of them got the know-how, they were hooked onto it. They spent every free time they have on it, making braclets, rings, pencil grips for family members. You can get the tutorial on Youtube.
Some of the looming can be quite complicated. Even mummy here got confused as to which band to loop :P
starburst - cant really see it on this band.
the standard one - fish tail
single triple loom band
infinity band - as given name on Youtube.
pencil grip.