Ok, so word is on the street that this years party for my kids will be a LEGO party!
So in true organised style, we decided not to leave all the preparations till the day before and to start organising favours and other non perishables asap!
We found this silicone brick mould on ebay (i think it was $5 including postage from hong kong?) Filled it up with crayons that were broken and placed it in the oven at 150 degrees celcius for about 15-20mins or until melted. Very carefully then we placed the whole mould into the freezer overnight.
In the morning we popped them out of the moulds and there we have our Lego crayon bricks to add to our gift bags.