I've used bungie cords most of my life and I'm definitely a girl. In fact, my first use of a 'bungie' type device was using my elastic hair bands strung together to secure a broken lap desk when I was at camp...so it was definitely something a boy would have been unlikely to do!

I will say that I never used a tie-down strap until we started farming (mesh straps with ratcheting mechanism to tighten them). Now we use them ALL the time!