I am starting to take senior portraits and I was wondering other then standard prints what other items can be offered to the client. And if possible would you have any web links that print these.

Amy help or suggestions would be greatly appreciated.

You could do a Magazine Cover, Playing cards (Check Pounds Lab,Full Color or WHCC) Party invitations, Coffee Table Book, Slide show for on line site is said to be a good seller,wall poster, calendar,bookmarks.
For me the Coffee table Book makes money. Never tried to sell any of the others but did a few mock magazine covers. Amazing how you can take a nice image and with close cropping and giving it that magazine cover look brings it to a whole new level.
I have used the bookmarks as a coupon offer for the student to hand out to friends. Several photos of them on it plus the offer.

You could also use acrylic...