how do I start a 2 - string box lanyard like the ones you do at camp?

Question

using rexlace

Answer 1

Like this:
http://www.bluemoon.net/~dotoran/prj_square_stitch.htm
The boondoggle man has more (different) 'stitches' on his site, just explore this site.
Alternative address for this site:
http://www.boondoggleman.com/look_in_tin.htm

Or look at scoubidou sites:
http://www.yoarra.nl/eng/begin.php
http://www.scoubiguide.co.uk/

Added:
I forgot to add a site where there is a 'key cord' lanyard, so here it is:
http://www.carbidecamps.net/CombinedActivities/LanyardsPage/CraftsLanyardPage.htm

Answer 2

http://www.makingfriends.com/ponybead/camp_keyrings.htm

http://www.makingfriends.com/lanyard_keyring_rwb.htm

http://familyfun.go.com/arts-and-crafts/cutpaste/feature/famf88campcrafts/famf88campcrafts4.html

http://printables.familyeducation.com/art-and-music/arts-and-crafts/51840.html (this site has printable direction sheets for you)

http://www.flyanglersonline.com/flytying/tyingtips/part71.html (this is a different approach to what you are talking about)

http://www.alibris.com/search/books/subject/Lanyards (this is a site with several books listed for these lanyards)

http://www.boondoggleman.com/ (super site with various stitches available!)

http://www.e-scoutcraft.com/braiding/straight4.html (I THINK THIS IS THE SITE YOU NEED!)