Many of these images were specifically drawn by Mego and didn't appear on other company products, while the seller told me it was a foreign mail in promo, I was leaning towards knock off.
Leave it my buddy Rob over at the Aquaman Shrine to solve this mystery without even being asked. He submitted this, a packaged Aquaman pencil sharpener using the same art. That's some unlicensed Hong Kong goodness there....
The Wallace & Gromit Charity Shop has released a limited run of figurines that were originally a part of their exclusive Hong Kong collection. These are based on some of the designs from their Gromit Unleashed Hong Kong Project. Each hand-painted resin stands around 6.5" in height. They sell between £35.00 and £60.00 (around $40-$70). All profits from the sale of these figures go to the Bristol Children's Hospital.