looking closer at the tape I can see where the tape isn't in contact with the glass or plastic, so we are looking through onto the paper, or what ever it is, Still no idea of the function.

So could you describe to me exactly what configuration of the materials you think you're looking at?

Sorry, missed this post. This is what it is, although I use dry-erase markers. Any ideas why I would need a 1" grid?

I use this for a very specific activity that I'm waiting for somebody to think of.

Are you re-caning a chair?

Are you preparing to custom wrap dice?

Are you preparing a display for your remarkable bullion cube collection?

An origami doohickey?

does it involve scoring a game or keeping track of changing data?
Is it used for plotting points?
Is the circular shape critical to its function?

making a pocketbook.

playing battleship

making a stencil for checkerboard pants

guide for ass hairplugs

ƒucking metal bar holder

I've ceased to care. :p:

What is it, already?

It's a sheet of Ghostlines poster board, with 1" grid marked off, double-sided taped to the bottom of a 20" diameter piece of table glass. The glass is round because that is what I had on hand. I would have prefered a larger, rectangular piece of table glass.

I draw on the glass surface with dry erase markers; the grid serves as a guide/measure for the dimensions of the drawing.

What is it?
It is used in a game. The game is played on a 1" grid. Any ideas? It's not Battleship.

Dungeons and Dragons?

Chinese checkers?

Yes, it is a homemade "battlemat" for staging Dungeons & Drangons encounters. Glatt wins again.

I've been going on Saturday nights to a D&D group at an old, dear friend of mine's house. We bring the kids (he and his wife have similar-aged kids) and they have a movie watching slumber party while the adults relive our nerdy youths around the dining room table. Our awesome, nerdy wives play with D&D with us. We play the new 4e (4th Edition) D&D, which incidentally is not produced TSR anymore, but Wizards of the Coast, who is now owned by Hasbro.

I suppose this is akin to some earlier generation's playing of Bridge or some such activity.