I got my first one in the early 90s long before we had copiers and our own printers in the home.
I was a freelance graphic designer and the printer I worked for printed it on his press. He got a visit from the FBI. It turns out it was ok if he printed it pink and a larger size than a normal bill. I was really excited to get it. Now it looks pretty common and not very exciting but I remember it was kind of rare back then. The only fake money I had seen was monopoly money. It measures 3.5 x 8.5 inches.
This was my first million dollar bill handed to me by a customer when I did freelance graphic design. I just sat and stared at it because it looked and felt so real but I knew it wasn't. It measures 2.5 x 6.5 inches.
This is a very tiny piece of a fake ten dollar bill. I found it on the ground. It's 1.5 inches tall. 
This is my second 100 dollar bill. I got it at a street fair. It's the largest in my collection and measures a whopping 4 x 9 inches.
I got this buck from the comic convention in 2003 it is 2 x 3.5 inches.
This is my second 1 million dollar bill. It was given to me by a guy that sat next to me on a plane. It has some preaching religious thing on the back of it and the guy started to preach to me a little and asked me to pray with him. Boy I sure did. Usually people like that annoy me so much but I was so afraid of flying I didn't mind him at all. It's 2.5 x 6 inches.
This is my rough draft of my own currency. The currency is the Lycurr. The first lady is Aidyl my cartoon character on a 55 dollar bill . . . I mean 55 lycurr. I haven't designed the back yet and the front is subject to change. Right now it's 2.5 x 6 inches but I think it will end up about 5 x 11 inches. I plan to have a lot more detail in it and make the nostrils A LOT smaller.
