Disecto Wrist Chopper
Your victim now puts their hand through the wrist hole, and they are secured in.
Put a carrot in the top hole and through the bottom hole, making the them very nervous!
Now Push Disecto's steel blade through the carrot in the top hole, slicing it in half!
Continue pushing the blade through their wrist!
They remove their wrist, and is still attached to their arm!
And the blade cut the bottom carrot in two pieces!