​Found in garden, lemon pips in crumbly substance

Looks like this stuff started as a ball and I found half in the front garden half in back garden.

Pretty sure it’s not animal dung as doesn’t smell. I think it’s man made somehow.

Some light pressure made it crumble from ball shape into powdery substance.

I’ve seen these pips in our dogs ‘output’ before so this is not the first time it’s got in our garden.

Any guesses appreciated!