Today while threading beads onto hat elastic with Miss 6 & Miss 4 [we make bracelets and necklaces on hat elastic], I cut a length too short & Miss 4's bracelet ended up looking like it belonged on Miss 0. In an attempt to avoid the inevitable tears I said "Look, you've made a beautiful beaded hair elastic". That got me remembering Mum's hair thingys.
I've spent the last hour & a half playing with the beads & elastic [once all children were in bed] & after about 30 years wondering tonight I worked out how to do it.
Here's my first attempt:
Here it is on my finger [imagine my finger is a ponytail]:
And here is a larger one I haven't joined up yet:
It's actually simple threading, once you get started. Each bead needs the elastic threaded through it twice. I'd suggest using a single colour bead first, to get the hang of it, before trying a stripy one like my black & red - I pulled it apart a number of times before I got the stripes right!