If you research "cavity press" you may find what you're looking for. But, as meijin says, you won't get very far with a simple press. Some points are designed to be poked....er....struck?, dug, rubbed, or sawn.

There are heaps of places where you can affect the body's pain receptors. Not all correspond to accu-points though, e.g. some "ah-shi" points don't even exist on some charts. Some are close to tendon receptors that cause the muscle to spasm, as in the case, when you hit your "funny bone".

You're better off with a medical text and a teacher who can show you where these things are and how to access them. E.g. brachial plexus, sternal notch, ribs, radial nerve, femoral nerve, etc.

You don't want to be doing any permanent nerve damage to people without knowing what you're doing.