slightly pushed in softdome tweeter on Fritz speaker

Thanks all for your suggestions, I tries the variations of the using a vacuum, etc. 

What actually worked and well (go Figure)  I used my index finger very gently on the side that was fine, and protruding normally outward, (non dented)  actually pressurizing that side, pushing and forcing the air over to the dented side, which then popped out to normal. I guess actually pressurizing one side to force out the other. If anyone else has this issue, it worked for me, looks perfect now.

Don't know whether this is a good analogy, your tube of toothpaste is almost empty, and you cant get anymore out. However, if your squeeze the end and roll it up,  it forces what air and product is left out. Thanks again, hope this helps someone!

The best trick is to use a shop vac... I had a nephew brat totally poke and crush in a aluminum dome tweeter.. I was pretty angry, I tried blue tape to pull it out and it kinda worked but not that well, then I grabbed my Milwaukee cordless M18 shop vac and used that and it got it almost perfect without touching the dome... I think it would work even better on a silk dome 

I'll keep that in mind,Thanks. Hopefully not repeated on my end ever again. 

You can gently using your finger just push it out and it pops back in to the original dome shape 

This happened to me once and I used the tape method mentioned by someone earlier and it worked great and the risk factor was super low. That's why I +1'd that method. 

I was always leary of the shop vac method, unless it was a variable speed motor, I always just pictured the suction being too strong and just demolishing the cone. Never personally tried it though, just my wild imagination.

Well, glad you got it resolved and cool to see everyones suggestions.