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Silly Putty is a pliable blend of silicone and boric acid invented in 1943. It appears to have been first sold as a toy in 1949 and first advertised in comics in 1956. The product is still sold, by Crayola LLC.
| Logo | Name | Year began ▲ | Year ended | Issues |
|---|---|---|---|---|
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Silly Putty | — | — | 5 |