Otto

If you have the bricks and have a wish
You may need to build yourself a fish

And in a bowl you can place your fish
Because fish don't live on a dish

But you won't need water in the bowl
So exercise self-control

And if fish are not your pet of choice
You have other options, so rejoice

Because bricks can be any shape you like
Like a fluffy cat or a dog named Spike

So build your wish, that's my motto
Like Daiman's version here of Otto