Heee heee heee... Finally got my paws on a pair of those
It was easy as pie to make because I had all necessary parts from a thing we call in my country a "Wertykulator". Couldn't find English equivalent for that word so I give you a ref picture: [link]
Ya I know it looks like a rake but it's not the same, believe me
Now I go slash sh*t up.
[Edit] That hellish contraption is actually called Scarifier. Thanks
for clearing that up