Paper Planes come in all variaties including GLIDERS , DARTS and STUNT planes.
Below i shall list sites where you can fnd some planes and the BEST planes i have tested

TOP 10
1- The best paper airplane - http://www.zurqui.co.cr/crinfocus/paper/air-bld1.html
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The Best Paper Airplane - http://www.zurqui.co.cr/crinfocus/paper/air-bld1.html