I made one like that for my Budgie a while back and my quaker uses it
we used a piece of shower board we had left over from making thier big play gym, to put on the bottom of it for easy clean up of thier messes it wipes up so easy - I even put a piece of the shower board under each of thier cages, I just made it a little wider all the way around the cage that way it caught all thier messes and i dont have to fight with the vaccume cleaner to get all the seeds up :-)
I think i even put a pick up on here some where of the portable perch we made
it makes it so nice just to leave it at the pc and let the bird sit on it