| Topic | Replies | Views | Started By | Date |
| Throwback Shields | 0 | 678 | Mike | Jun 14, 2006 |
| Interstate colors, but | 0 | 507 | Random832 | Feb 21, 2006 |
| I like the Cutout shields best | 3 | 485 | Dave | Aug 3, 2002 |
| Old-Fashioned is Better | 2 | 435 | Troy Heagy | Apr 6, 2002 |
| Shapes of things to come | 1 | 430 | Frank Gilligan | Jan 4, 2006 |
| New Highway Sign | 2 | 423 | Landry | Jun 10, 2003 |
| I like Green | 3 | 391 | Karl Phillips | Apr 12, 2002 |
| US Highway Sign Colors | 0 | 356 | RSC | Nov 7, 2003 |
| highway signs | 0 | 355 | BRAD | Sep 4, 2004 |
| Combination cutout/square | 0 | 353 | Daryl | Sep 15, 2007 |
| Idea for US Highway signs. | 0 | 337 | Zack | May 15, 2005 |
| The Green and Yellow Option | 0 | 335 | Paul | Jul 18, 2005 |
| my idea for the US sign colours | 0 | 268 | Jason | Jul 31, 2009 |
| Idea | 0 | 182 | Odie | Oct 20, 2010 |
| Color Combinations | 0 | 122 | Daryl II | Dec 12, 2011 |
| A Modest Proposal | 0 | 41 | Orange Lobster | Dec 13, 2014 |