* Plastic craft rulers often have a square edge useful for pressing, less so for slapping as they can break.
* Plastic kitchen knives are often quite sturdy. They are semisharp, so they won't break skin easily. Don't stab yourself with the point, as that might penetrate; there are ones with blunt ends though.
* Many letter openers are semisharp and may be made of metal, wood, or other materials. Some are very durable, others more fragile.
* If you like semisharp points, check out the pet or livestock aisle. Many brushes or currycombs have points that are uncomfortably sharp if pressed but won't break skin. In fact these are popular pervertables -- you put a couple on the floor and have your submissive stand or kneel on the points. Perfectly safe, but wow does it get intense after a couple minutes.
* Crystals such as quarts have semisharp edges and points. These are fantastic as pocket fidgets if you want something to squeeze. Most are too wide to stab yourself with, although they can leave bruises if you step on one.
* Hardcore edgeplay masochists stand on Legos. Everyone else thinks of those as demonic caltrops. They are also useful as pocket squeezies. Usually they won't break skin because they are square.
Re: STIM
* Plastic craft rulers often have a square edge useful for pressing, less so for slapping as they can break.
* Plastic kitchen knives are often quite sturdy. They are semisharp, so they won't break skin easily. Don't stab yourself with the point, as that might penetrate; there are ones with blunt ends though.
* Many letter openers are semisharp and may be made of metal, wood, or other materials. Some are very durable, others more fragile.
* If you like semisharp points, check out the pet or livestock aisle. Many brushes or currycombs have points that are uncomfortably sharp if pressed but won't break skin. In fact these are popular pervertables -- you put a couple on the floor and have your submissive stand or kneel on the points. Perfectly safe, but wow does it get intense after a couple minutes.
* Crystals such as quarts have semisharp edges and points. These are fantastic as pocket fidgets if you want something to squeeze. Most are too wide to stab yourself with, although they can leave bruises if you step on one.
* Hardcore edgeplay masochists stand on Legos. Everyone else thinks of those as demonic caltrops. They are also useful as pocket squeezies. Usually they won't break skin because they are square.