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Picture of Making Cheap Cardboard Coasters
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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.
 
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Step 1: Make blanks out of cardboard

Picture of Make blanks out of cardboard
Cardboard pieces glued together in stacks of three each.

Step 2: Cut pieces out

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Cardboard pieces after being cut out on bandsaw. Make them the size you want, I drew circles of 4 and one quarter inch, and the inside circle 5/8 inch smaller. Whatever works for you.

Step 3: Gluing cut out pieces together.

Picture of Gluing cut out pieces together.
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Pieces glued together. Just use white glue (or hot glue), weigh down, and wait a while.

Step 4: Decorate plain coasters

Picture of Decorate plain coasters
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Starting to decorate: use your imagination in decorating your coasters. Paint, photographs (make sure ink is permanent, not ink jet type), magazine pictures, construction paper, scrapbook paper, etc.

Step 5: Additional decoration

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A pumpkin design is selected for this coaster

Step 6: Varnish coasters

Picture of Varnish coasters
Several coats of an acrylic varish is used to enhance and seal the coasters. This step will protect them from moisture in limited amounts.

Step 7: Cut circles of paper inserts

Picture of Cut circles of paper inserts
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For additional moisture absorption, I cut out circles of napkins and or paper towels. These can be used if it is particularly humid, and will protect coasters from water damage. And they are easily replaced.

Step 8: Final Product

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Completed coasters, ready to use.
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!