http://www.nintendo.com/consumer/strapreplace.jsp
Get a beefier strap for your WiiMotes, just to be safe for those friends that just can't hold on.
Ok it is not a recall (http://www.theinquirer.net/default.aspx?article=36387) but they are offering a stronger strap if you broke one or are worried.
Wow, that didn't take long for them to pick up the ball. I was planning on emailing them and requesting replacement straps anyway to see if they would send them for free.