Picture of Making Cheap Cardboard Coasters
In this instructable, simple, useful coasters are made out of free materials, generally. I have lots of papers on hand and the cardboard is gathered from used boxes, available just about everywhere. Good way to recylce the cardboard. Gather some cardboard pieces, here are the end flaps from regular cardboard boxes.

Step 1: Make blanks out of cardboard

Picture of Make blanks out of cardboard
Cardboard pieces glued together in stacks of three each.
rimar20006 years ago
See <a href="http://www.instructables.com/id/How_I_maked_my_red_blue_anaglyph_eyeglasses/.">http://www.instructables.com/id/How_I_maked_my_red_blue_anaglyph_eyeglasses/.</a><br/><br/>There is an idea you can adapt to make easily and fastly these coasters. <br/>
Creativeman (author)  rimar20006 years ago
Thanks for the tip. what are anaglyph eyeglasses?
These you can see in the photos. An eye red, another blue. They are to see in 3D.
gmjhowe6 years ago
Great idea - we use alot of card here, i have a few coasters that i stick an old piece of metal plate to. (printing plates)
Creativeman (author)  gmjhowe6 years ago
thanks, gmj.
Creativeman (author) 6 years ago
Thanks alex....you could be right, didn't think of that. I'll "demote" it!
Sandisk1duo6 years ago
You might want to change the first picture, people might think that this instructable shows you how to make a the poster in the first picture... the coasters look really cool!