My parish has a sloping floor toward the Iconostasis so when you make prostrations to the floor, it is possible to lose one’s balance and go flying down toward the tetrapod table!
In our Ukrainian Orthodox parish, some Old Believers showed up with their special prostration pillows, or specially made pillows they put on the floor to place their hands on when making prostrations - so that the right hand, specially blessed for making the Sign of the Cross, doesn’t get soiled.
Some of our people did the unthinkably rude thing by saying, "What are you, Muslims with your prayer rugs?
Happily, I could refer them to an OCA parish where they and their traditions would be accepted!
The Celtic Christians used to make prostrations by placing the right hand over the left in cross-wise fashion on the floor/ground and then touching their foreheads to their hands. A nice practice that is easily adapted!
The Old Believers keep their prayer pillows near icons (one may see them at the iconostasis, and there is a loop on them to make carrying them to church easier.
I had one made by the mother of an Old Believer friend in Kyiv, but one may purchase one at the Old Rite Church of the Nativity bookstore in Erie.
Alex