Rubber Floor Cable Cover (St Nicholas SG1)

Hi, has anyone got an offcut of rubber cable trunking to stop cables from being a trip hazard? I have some Wi-Fi cables that sit in a bedroom cupboard doorway making the area unsafe to step into. I only need 20"/50cm max and it's sold in lengths of 1.8m. Buying that much would be a waste, so if you have some unused, I'd appreciate it.