Alternatively, purchasing briefs that are slightly too small for you and then participating in any type if rigorous activity i.e. Tree climbing, rock climbing or horse riding, this too should achieve a wedgie. Yet, this method is not completely fool-proof and may not guarantee the actual wedging of the pants between the bottom. If this doesn’t work, you can always hint slyly to your more boisterous friends saying that "I don’t know what the big deal is about a wedgie” and "it couldn’t possibly hurt that much”, this may incite your friends to try it on you without actually having to ask for it. But again this is not guaranteed. Another method would be to give someone else a wedgie hoping that one day they too will return the favour.
Failing that you can always purchase a thong, where you will experience the benefit of a permanent wedgie without the hassle of having to ask for one!