Hard like rocks

If I were to throw these at my enemies, I’m sure it’ll definitely do them some bodily harm. However my disposition is always sweet, therefore I can’t recall that I’ve made any enemies at all. So instead of wasting these, I’ve gotta find out how to make good use of these load of kiwis. Any ideas? A colleague of mine has a kiwi tree and he’s been harvesting loads and loads of kiwis recently. And there I was, thinking that I can’t grow kiwis in Germany.