Nice use of stretchy bike tubes to convert a pair of lace-ups to slip-ons! Inner tube laces by jacco1997:

I got tired of my bike’s pedals catching my laces, so I decided to ditch my laces and go for something else. I ended up with using inner tubes to turn them into slip-ons. They stretch out to put your foot in, and stretch back tight. Mine are incredibly comfortable and very convenient.

All you need is a pair of shoes (laced), an inner tube, and scissors.

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Bike Tube Headband