I created the invitations on the computer using Printmaster. First, I found high-resolution graphics of Spiderman online using google or yahoo image search. Then I went to work. I always make postcard invitations, mainly for two reasons: they do not require an envelope and they have cheaper postage. On the front of the invitation there was a picture of Spiderman swinging from his web and it read: Swing on over...for web-slinging fun at Ryan's Spiderman party. Then on the back of the invitation it is set up like a postcard with a dividing line that separates the party info and the TO address. On the left-hand side it read: Join us (then list date/time) at our "web-site" (then list address) Say you'll hang out with us (then list telephone #). Then I put a picture of Spiderman hanging up side down from his web. Our address was on the left side at the top in a small font. Then they were addressed to the guests on the right side in a large font.