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You can play Trivertex in any two short walled boxes or box tops… providing you follow these handy dandy directions.  First you must cut a hole in the box that you chose to be the bottom box, so you can retrieve your marbles (the hole works fine anywhere in the bottom of the box).  Next you tape the top and bottom box together as in the picture.  (We made a false bottom to catch the marbles, you can do that too, but weíre too lazy to tell you how to make one, and think that you’re as smart as us and can design our own!

Now you draw the three following triangles on the floor of the top box with one vertex of each triangle touching in the middle of the box (these directions are one giant tongue twister, arenít they?)   You may draw them anywhere (as long as you leave 5 centimeters around the inches along the edges of the box for shooting lines and holes).

These are the triangles you must draw:  isoceles, scalene, and equilateral.

Make a divot with a one centimeter diameter inside the vertex of all three triangles, one centimeter away from the center where the triangles meet.  Cut three holes that have two centimeter diameters.  Draw a shooting line three centimeter away from the triangles  outside line.  Use a pencil to make a divot to put your shooter on.  Now for the “funnest” part:   How to play!  First you need a tongue depressor or a popsicle stick.  You now need a shooter and three marbles.  You place the marbles on the three holes in the triangles and the shooter on any of the holes that are behind the triangles.  You take the stick that you  have, and you strike the shooter, trying to hit the marbles with the shooter.  You try to get the marble into the two centimeter hole.  If you do get it in the hole, you put the marbles back on the holes on the triangles… all but the one you got in the hole, so you are shooting till you miss.  The person that shoots it into the hole, keeps the marbles until the game is done.  Then the person that shot it in, goes again. If they miss, the next person goes.  The person with most marbles wins.