I sometimes have a tactile need that is at least vaguely similar. Here is what I have found that works for me, in case you want to try any of it.
1. I have found that I can do LIGHT scratching (fingernails) and heavy pressure (tape, rope, tightly wrapped clothing) to alleviate it, but this may not work for a lot of people. 2. I have a lot of not-great solutions, but one that seems like at least a compromise leaving MINIMAL marks is whacking my arm/leg with a ruler/pencil. This is not the safest choice because the wood could break, so you may want to find a toy/tool in the shape of a thin flexible rod (probably from a kink source) that can similarly hit a narrow line in a way that feels like a lot more than it is. 3. When it comes to needing to feel the edge of something instead of needing to feel a fine line of intense stimulation, I find that rubbing/holding a metal spoon and running the edge of the bowl of the spoon over my skin helps. 4. One thing that is completely out of this ballpark but gives me a similar feeling for some weird reason is one of those scalp massagers with all the fine wires. 5. I like holding and bending an assortment of paper clips (and playing with magnets, too) when I want a little twisty thing with a small hard shape. However that might not work if it becomes tempting to experiment with the poke-y ends of the things. 6. Some toys/objects that are fun to hold, easy to manipulate, and have lots of edges: simplified Rubik's cube, Jacob's ladder, a chain of carabiners and/or binder rings and/or paper binder clips from office supply to click open and closed (and possibly harmlessly pinch fingers), those dreadful managerial desk toys with the row of three balls that bounce off each other, a set of rings within rings like for a little kid, and any extra-heavy small sculpture made out of one sturdy smooth piece of metal, ceramic, or stone.
I may come back and add links if I have spoons. Not sure.
Re: STIM
Date: 2016-08-03 01:52 am (UTC)1. I have found that I can do LIGHT scratching (fingernails) and heavy pressure (tape, rope, tightly wrapped clothing) to alleviate it, but this may not work for a lot of people. 2. I have a lot of not-great solutions, but one that seems like at least a compromise leaving MINIMAL marks is whacking my arm/leg with a ruler/pencil. This is not the safest choice because the wood could break, so you may want to find a toy/tool in the shape of a thin flexible rod (probably from a kink source) that can similarly hit a narrow line in a way that feels like a lot more than it is. 3. When it comes to needing to feel the edge of something instead of needing to feel a fine line of intense stimulation, I find that rubbing/holding a metal spoon and running the edge of the bowl of the spoon over my skin helps. 4. One thing that is completely out of this ballpark but gives me a similar feeling for some weird reason is one of those scalp massagers with all the fine wires. 5. I like holding and bending an assortment of paper clips (and playing with magnets, too) when I want a little twisty thing with a small hard shape. However that might not work if it becomes tempting to experiment with the poke-y ends of the things. 6. Some toys/objects that are fun to hold, easy to manipulate, and have lots of edges: simplified Rubik's cube, Jacob's ladder, a chain of carabiners and/or binder rings and/or paper binder clips from office supply to click open and closed (and possibly harmlessly pinch fingers), those dreadful managerial desk toys with the row of three balls that bounce off each other, a set of rings within rings like for a little kid, and any extra-heavy small sculpture made out of one sturdy smooth piece of metal, ceramic, or stone.
I may come back and add links if I have spoons. Not sure.
Good luck!