Fish'n'Bots Jam-o-rama

Yes, the designs are great.
And I, too, like your sketch best. The whole scene is truly lovely. I can just about feel the girls happiness.

But, that robot...
That is Disney. You know? The inventor (I think Gyro Gearloose is his name) who lived close by Scrooge McDuck's vault. He had a tiny robot with a light-bulb for a head.
I think it was called "Little Helper".

So what we have here is "Big Helper", then?!

Thanks for reminding me of that. Over the millennia you tend to forget such things