Another bunny? I was between bunnies for 6 months after my previous one died. We had decided not to have another one and had got GP's instead, but in the end I couldn't help myself - I just love the long-eared, lazy, grumpy, fluffy things and had to get another.
Or a goat/sheep to keep your pony company? Hens (I really want to have hens)?
fortified - forgot about hedgehogs. The boarding kennels holiday home my boys go to, breeds pygmy hedgehogs and they are gorgeous. DH has to check my pockets to make sure I haven't tried to smuggle one out