I had a simillar thing happen to me when i was younger... also with a made up ouija board.... the thing is i lived in eastern europe at the time...id never seen one nor knew anything about them... i was like 10 or 12 years old, in a village where my grandparents used to live and i asked my friends to try a seance sort of thing with a paper and numbers and letters like u described - which i drew into a square on the paper. but to make it more interesting (i thought) i tied a ring to a piece of string which i spinned and let it hover on top of the paper. for a location, i wanted to use a haunted house, so they took me to this insanely tiny house, which had no door and just hollow spaces for windows. it used to belong to a couple, an old man and woman, who had died several years before that. the man used to be a grave digger there so, believe it or not, the house wass built IN the freaking cemetery...graves and crosses all around it. i put the paper in the corner of one of the two rooms, and we proceeded with the bs incantations and prayers and stuff. the ring tilted towards the initials of a friend of ours, a soccer player who played in the city and had died during a training session a few weeks before that. anyways we thought it was all fun and games and since we didnt see any demons or ghosts or zombies rising out of their tombs we left it there - by the way, if ppl do this sort of thing, even if its just to fool around, always say a little prayer or something at the end; and dont take this in a christian sense eh...i dont mean like hail marys or anything like that. just at least ask politely to whomever, or whatever u called out, to leave. doesnt hurt to read a bit of the lesser key of solomon or something like that, just to know a little bit about how to end a sesion like this. cuz even if it is a game, u never know what u might do, or call out, even by accident.. So yeah we left it there and jsut went home and a few hours later one of the guys that was with us, came back to my house on his bike, panting like crazy and yelling my name out from like a mile away. finally he stops infront of us - i was still outside playing with my friends - and he starts cursing at me and crying and stuff, and saying things like what the hell did u do, u freakin idiot we never should ahve listended to u and stuff like that. when he finally calmed down he explained that he went back to the house on his bike cuz he forgot hes slippers there - we walk around barefoot most of the time in that side of the world so this wasnt a weird thing to happen - anyways, he took his slippers and hoped on his bike but he could move forward, and he swore that something was holding him in place, like someone was pulling his bike bakward and was letting him move foreward. and he heard this grumpy old voice coming from behind the house which was scary and unusuall because nobody hangs out in the cemetery an hour before dark. we got scared and we went back there packing butt loads of candles and crucifixes and stuff but when we got there, the house was surrounded by people who lived in the area and there was some commotion so we got closer but slowly so ppl wouldnt notice how freaked out we were. what we noticed was that the roof of the house had completely collapsed, and a big ass chunck of the wall, in the corner of the house where we left the paper and ring and stuff had fallen right in that same spot where we did the seance. some lady yelled out that she`d seen us hanging around there before so we ran away before they could blame the freakin demolishion on us but it was scary as hell. all night after that we heard screaming and scratching on our windows and stuff. my friends swore there was this middle aged lady at their window whaling all night and scratching the window and throwing pebbles in the walls of the house. it aint nothing like the movies, this stuff is scary in real life...