I have got my DS 16 a Reading festival ticket for Xmas (hope I don't regret it but he hasn't stopped going on about it!) and am looking for ideas for a "survival box" as an inexpensive, jokey present to go with it. The ticket cost enough so don't want to go overboard and it's a bit of a jokey one. So far I have loo roll, wet wipes, hand sanitizer. He has a battery pack. Looking for other ideas that don't cost much. Hit me with your fab ideas please.