Spoon pipes are often made of colored glass and they're easy to use. Sometimes, you can find a spoon pipe with a carb hole on the side or end. These types of pipes are typically the most common type found by police officers when they make arrests for drug possession in their respective jurisdictions. This can make it more difficult for you if your case goes to trial, especially if there's no other evidence except for this single piece of evidence that could be used against you.