You can also buy them on Ebay for about $10, look for 100" projection TV
If you have one of those "Everythings $1 " type stores around you, look there for them. I have seen them several times and geuss what, they were just $1
They do work well for lots of things.
And if you want the 100" projection TV, get a fresnel lens, build a box the size your picture tube on your tv, make an insert for the box to fit it and cut a hole the size of you lens in the center. Paint everything flat black (except the lens and TV). Now focus (slide insert forward or rearward) on a white wall or sheet and you have a big screen TV that plays upside down and reversed text. Turn TV upside down and you only have reversed text problem. BUT that makes watching movies with forein subtitles even more fun
You could bounce off a mirror and correct both problems at once!
OR if really bold, you should be able to cut the 2 sets of 2 wires on the picture tube and splice in reverse. 1 set will change the top to the bottom, the other will change the left to the right. If you do that be very carefull, or best take it to a TV shop and let them do it for a couple bucks. Just except the wierd looks and give them the $15 or so. That could even be fun depending on the tech.
If you buy a cheapy wal-mart 19" color TV and turn it upside down the color runs out, so don't do that
REALLY!!! I did that, and though it did not make a mess or anything, I lost all the color when I turned it upside down
These ain't the greatest of course, but hey what do you want for a buck? A Rubber Biscuit?
$1 for a lens, free large cardboard box, and any smaller/normal sized tv, probably the smaller the tv the better the big picture really. 19" seemed to work good. My results have been poor to good so far, and it's fun to play with too.
My main problem has been no space for anything, in the rock house I rented now I have tons of space! This will be something I put alot of playing into to see how well I can get it to work. I have 2 or 3 lens here if I can find them.