| 2025-09-19 | According to experiments, they can't "sleep" in space |
| 2025-09-01 | Toys that have their ups and downs |
| 2022-10-01 | Oscillates wildly |
| 2020-12-22 | Dingbats |
| 2020-04-20 | Toys on strings |
| 2020-04-01 | Idiots |
| 2019-02-19 | Goes back and forth quickly |
| 2016-07-24 | They can sleep if you play with them |
| 2015-04-10 | Asses |
| 2014-10-27 | Toys on strings |
| 2014-06-06 | Goes on and off diets, say |
| 2013-08-25 | Jerks |
| 2011-04-03 | Idiots |
| 2011-02-26 | Goofballs |
| 2010-09-11 | Shows great instability |
| 2009-07-28 | Fluctuates wildly |
| 2009-04-02 | Dingbats |
| 2009-02-22 | Fluctuates wildly |
| 2008-07-06 | Goes up and down |
| 2008-06-28 | They come with strings attached |
| 2008-06-18 | Toys that have their ups and downs |
| 2005-01-23 | Goes up and down |
| 2004-05-07 | They may give you many happy returns |
| 2004-03-09 | Goes up and down and ... |
| 2002-09-23 | Duncan toys |
| 2002-04-23 | Toys on strings |
| 1999-01-03 | They can sleep while you watch |
| 1998-07-06 | They're used in walking the dog |
| 1998-03-05 | Is wildly unstable |
| 1997-10-26 | Shows wild instability |
| 1995-11-05 | Ninnies |