Best deal for laser accessories?

Hey, I currently have a 95 mW green laser and will soon have a IgorT blu ray laser. my question is basically what are some cool things to buy that are fun with these lasers, such as optics sets or other things. Any help would be appreciated as I dont want to order something my lasers wont be able to use or spend too much on something that I could have gotten cheaper.

Thank you, and sorry if this has been covered somewhere else.

A fog machine and some diffraction gratings go a long way Probably cheaper than any of your lasers too.

Some Safety goggles .....

And some mirrors and motors, and some other parts so you can make a nice spiro