3D printed cup holder - request

Wibbles

Could someone please 3D print me a cup holder to allow me to carry hot cups of tea from my kitchen to my living room - on my wheelchair ?

The type of thing that I am looking for - it must be strong but slightly flexible to allow for small movement without spilling the contents…….

Like this - but able to take parallel sided cups - not just tapered paper cups..with two straps around the arm rest (which is shown below) - there is a metal bracket running the whole length of it. Perhaps slightly deeper than this one.

All of the cupholders that I can find are mounted on SQUARE or ROUND section tubes - neither of which I have - my wheelchair is composed of castings and metal brackets

Thanks