Small update - It took a while to find a proper resource for the chewdefender.
In the end I used a Playmobil leaf blower which conveniently came with a backpack.
(I hope the paint sticks to the rubber hose that came with it)
BOYL really makes the paints flow - our kitchen table looks like hell - and I only have to shove it all to one side for dinner.
I have a wonderful wife!