First you need to know what a Klein Bottle is, if you don’t. Over at Wikipedia you can learn more about what a Klein Bottle is. Once you know that you can understand the difficulties in trying to engrave one. And the bottles made by Cliff Stoll of Acme Klein Bottle makes his out of borosilicate, which is very hard and wouldn’t have liked a laser vs an engraver. Bring in Windall Oskay and Lenore Edman of Evil Mad Scientist Laboratories, creators of the Eggbot and you have a team that figured out how to engrave on the Klein bottle…check it out over at Make, the place for gadgets and gizmos and how to make them.
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Scrap yarn is great to make a colorful pom pom Christmas tree topper
If you like making pom poms and looking for a unique tree topper why not make a big ball of pom poms out of all sorts of colored yarn to make a statement tree topper. After you have made your pom pom tree topper featured at the blog Sugar and Cloth why not use the scrap yarn to embellish the branches like tinsel?