Caved in speaker cones?

[Heofz]

My 2 yr old nephew thought it would be fun to push the "buttons" on my hi-fi speakers lol

They still produce fine sound but I was wondering what would be the most effective/easiest way to "unpush" them? I was thinking maybe some blu-tac on the end of a pen, but was wondering if any of you lot have done this before, and if so, how?

I'd prefer not to completely dismantle the speakers btw, as I'd probably destroy the paper(?) cones in the process.

 

[Heofz]

hmm, is that not risky at all, as in, could they tear the cone? my vacuum is one of those oldschool vax 2000's, they suck pretty hard

 

[Heofz]

Thanks for the suggestions guys, will let you know the outcome