It's called a *spoon*...
You might also try a rice paddle. You can get them at an Asian grocery store. They come in plastic/wood/bamboo/metal.
Google "rice paddle" and turn on the images view, you'll see tons of options.
A wood spoon will work too, cut the handle down and sharpen up the edge as needed.
Also, a large serving spoon with the handle cut down. Or a maybe a larger utensil spoon modified to fit?
If you want to go electric... perhaps if you sharpen the blades on an electric egg beater... ... just a suggestion... if you do tho... FILM IT
http://letmegooglethat.com/?q=commercial+pumpkin+seed+harvesterI was hoping to get an answer from a farmer or some one who collects the seeds in a production environment.
never thought a field of pumpkins would be grown only for seed.
is it really more valuable to throw the flesh on the ground than to can it or make pies or something?