Superpixel, are you doing close-up or stage for your "opening for a rap group"? It seems like stage to me.

But the things you've listed.. aren't they more "close-up" items? something you'd do in a "strolling" kinda gig?

Or they seem like popular tricks for back when kids thought people like david blaine actually did "street magic".
I'm not saying they are bad tricks but are you sure they work for your environment?

Wizard magic will always be in fashion, but is not performer with "cookie-cutter" tricks from a magic store that have just been given a Wizard theme. You may find some thing you can use in the Earliest Wizards' Journals when I was still actively performing Wizard stype magic. I gave up after Wizards' Journal #6 because so few magicians were performing magic in this style.

Spellbinder, do you mean these? http://www.lybrary.com/wizard-magazine-volume-14-p-5605.html
If so, I'll definitely buy them and have a look. I've honestly been dying to try a modern take on a wizard anyway

Frank, sorry those were indeed effects for after the show if I'm needed to do something
These are small stages (think gastropub joints, but we'll be at some geeky conventions too), so for the stage I'm doing my own routining and variations on: Splash Bottle, appearing ice, Imp bottle, needle through arm (Stat), Shift and Dresscode. I know these are a bunch of off the rack items, but I've got short turnaround for the first tour and I'm familiar with these.

I've got some crazy ideas for the future, and a HP show for older kids might find them interesting. One includes a battle with a Dementor using a fog machine and green laser projector

No, that's "The Wizards Magazine" and my reference is to "The Wizards' Journals." Unlike other magic magazines which contain boring articles about who attended the magic club meetings this month, complete with photos of old geezers smiling at the camera, the Wizards' Journal contains only descriptions of magic, most of which you can build yourself from the simplest and least expensive and readily available parts. You don't have to buy the entire issue, but youn can pick and choose only those effects which are of interest to you, making up your own magazine from the parts. You'll find a table of contents HERE: http://www.magicnook.com/wizardsTOC.htm The Journals talk only about MAGIC and not about MAGICIANS unlike your ordinary magic magazines.

I'll admit I don't do these. I do a HP wizard show for 10 and under, but 18 would have me worried. Basically, I think I'd just approach it like an adult show but try to think of clever ways to mention HP or something out of the HP world.

For example. I do a cards across trick. For your show I would use Harry Potter cards and say three of the cards are going to apparate from one pile to the next. Show the three that will disappear and then when you count them out in the other pile show how they have appeared there. This is an adult trick but incorporates the HP them.

I also do What's Next (the spot trick) even for adults. I just tell them that this is Wizard Math and that a metal plate can have four sides in Wizard School as opposed to only two sides in the Muggle world.

I got 99 problems but quidditch ain't one.

Just take an adult show and do it for them seeing as they are practically adults. Card stuff in good because they are of an age where they know the suits. Try something like invisible deck or take some of your kid tricks and take out all the patter designed for kids ans make it more adulty (even though that's not a word.)
Hope this helps.

If you treat them like adults, rather than children , you will gain their respect and old their attention longer, if you use drinking related magic, be sure there is a message telling them not to drink, or it may get ugly with the parents who pay you , also anything sex related, bothe males and females have this on their mind, but both have very different ideas of it. Also both like cars, and there is some magic out there with auto themes, lots of mentalism , it works.
College is in the future of most 18 year old's , effects where they pick the make model and color of a car you predicted, a bit of pre show work , you find out what school,they want to attend, you have a lot you can do with that info. A great effect you can make cheaplly in jumbo size and it can be made for boys or girls is an effect called " Night out with the Girls" it can be a lot of fun,

I am 21 years old. I would absolutely love it if someone threw me a Harry Potter themed birthday party.

All I'm going to say.

I have few problems with High School and College audiences. I seem to work well with them.

On the other hand, Catholic retreat parties for married couples are just wrong. The "men" get fall-down drunk and then try to drive home! I was raised Catholic and even I find it disgusting.

Oh my goodness! That is quite possibly the greatest post in the history of the Café. Blimmin marvelous!

Uh huh uh huh uh huh... jigga!

It's a Hogwarts life for us, it's a Hogwarts life for us
Steada treated, we get tricked,
Steada kisses, we get kicked,
It's a Hogwarts life!

Word up, Snape Dogg