Yeah something like a dish or small bath towel would probably be ok. You could also look into one of these. The gym I worked out of several years ago and it worked really well.
There are some pads designed for this. Manta Ray. https://www.amazon.com/gp/product/B01L7CGE5Y/ref=ox_sc_act_title_1?smid=A2RGTFZ393WZ6G&psc=1