In the car ashtray.
All the pockets of your trousers in the wardrobe.
The suitcase you brought back from Bali.
Old glass jar in the shed.
Wherever there might be some spare change - start looking for it. You're gonna need about $ 16,000 if my calculations are correct.
If you can't manage this in the next three months, wait about 6 months and you might make do with about $ 10,000.
Okay - go. Get started.
PS: do the children need to eat every day? I mean, really?