Andrew Mayne, creator of Bisection and author of Touching Sky presents a brand new shocking magic effect. Armbuster! Place your arm into a "magic" cast that prevents you from being harmed.
Then, bring out the wickedest looking drill you've ever seen. Proceed to drill a hole straight through your arm (blood is optional). Of course, when you remove your arm from the cast, it is unharmed. Thank goodness!
The effect can be built in under a half an hour using $10 worth of materials and a $20 cordless drill.