Mah bucket has rocks

I went out on the Spree river, but they made me give the boat back at the end of the trip. And I've never had a pony. But I have a backup plan:

(To the tune of "If I Had a Boat," by Lyle Lovett.)

If I saw some rocks, I'd swipe them from the planter.
And if I had a bucket, I'd fill it with my rocks.
And we could all together
Sit out on the terrace
Playing with my bucket and my rocks.