[[File:Celt with weights of gemstone turtles-01.jpg|thumb|Carved wooden rattleback]]
While rattlebackRattleback [[artifact (archaeology)|artifact]]s are described astypically stone withand variouscome measurements,in mostvarious whichsizes. areModern soldones currentlysold as novelty puzzles and toys are describedgenerally as plastic with measurementsmade of 3.75plastic, incheswood, longor xglass, 0.75and inchescome widein xsizes 0.4375 inches high. Carved wooden rattlebacks are described withfrom a measurementfew ofinches 5.5up to 612 inches in lengthlong. One plasticA rattleback madecan andalso soldbe made by Charlesbending W.a Sherburne is described as 12 inches in lengthspoon. Glass rattlebacks, and those made of spoons, <ref>{{Cite web|url=http://www.exo.net/~pauld/TomTits2000/europetrip/technorama%20lecture/technoramalecture.html|title=technoramalectureTechnoramalecture}}</ref> are described as being tested with unreported measurements. Larger rattlebacks (up to 8 feet long and 16 inches wide) are made on request by Emmanuel Peluchon for science museums.<ref>{{cite web|url=http://boisselier.ca/en/products-page/curiosities/|title=Rattlebacks, puzzles and musical tree by Emmanuel Peluchon|website=boisselier.ca}}</ref>
Two rattleback design types exist. They have either an asymmetrical base with a skewed rolling axis, or a symmetrical base with offset weighting at the ends.
