pin stripe

[TinGoat]

What you are looking for is called Map Tape:
<!-- m --><a class="postlink" href="http://www.maps4u.com/cgi-bin/search.cgi?action=search&method=subcategory&Category=Pins_Tacks_Markers&SubCategory=Map_Tape">http://www.maps4u.com/cgi-bin/search.cg ... y=Map_Tape</a><!-- m -->

Or Chart Tape:
<!-- m --><a class="postlink" href="http://www.filmtools.com/forchartap.html">http://www.filmtools.com/forchartap.html</a><!-- m -->

<!-- m --><a class="postlink" href="http://www.flex-a-chart.com/chart_tape.htm">http://www.flex-a-chart.com/chart_tape.htm</a><!-- m -->

1/32" is as thin as it comes which should be fine for striping a roadway.

If you are using it for pin-striping an aircraft you should look at model aircraft decals.

<!-- m --><a class="postlink" href="http://flightdecs.ca/">http://flightdecs.ca/</a><!-- m -->

<!-- m --><a class="postlink" href="http://www.pronto.com/user/search.do?displayQuery=model%20aircraft%20decals&SEM=true&query=model%20aircraft%20decals&adid=1192030222-2308212-0_gs&ref=model%20aircraft%20decals&creativeid=3993301938&site=">http://www.pronto.com/user/search.do?di ... 1938&site=</a><!-- m -->

<!-- m --><a class="postlink" href="http://www.thirtythousandfeet.com/models.htm#decal">http://www.thirtythousandfeet.com/models.htm#decal</a><!-- m -->

Etc.....