Here are all the facts, experiences, techniques and media/links we have on:

Abrasion

SAFETY NOTICE

Human skin is fragile! Abrasion has its drawbacks. The goal is to make the skin feel alive, not break the skin.

Take a material or object with an irritant or a specific physical sensation, such sandpaper or thistles. Rub it against bare human skin. That is abrasion. There are those who need the additional sensation just to feel and there are those who are sensation junkies, seeking out every possible mechanism for generating a response from flesh.

Possible Abrasives

Sandpaper
Thistles
Rough Silk
Chamois Leather
Brushes
Wire Wool

Ways to make it even more interesting

Play with a blindfold
Combine with Ice or IcyHot to create even more sensation