Spare tires?

Nope, I am not on a diet, I happen to have a couple of old tires in my garden. I was going to plant in them or maybe make a sand pit for Lily but I am going to now put one in the rabbits outdoor set up. I was wondering if anyone had any ideas what to put in it. I was thinking maybe just soil and grass seeds? Does anyone have a better idea?
Thanks x

Sounds really fab!

Soil and Bark Chips maybe???

Just watch they don't chew on it... not sure what effect rubber would have on bun tums, pretty sure those wire bands in tyres could prove dangerous.
I used to put a litter tray of water in the pen, it was a great favourite on hot days, not just for drinking either, I remember Toffee used to stretch out in it!

I might just use a littler tray then! Maybe stick to my original plans for the tires!