Looking for a (slightly) concave mirror

[DrEvil]

I bought a couple of these. https://www.massdrop.com/buy/the-vorso-mk1-spinning-top

Now I need something to spin them on. I think a 4 to 5 inch concave mirror would be a perfect solution. A glass lens or a piece of glass with a slight concave surface would work. Having the reflective surface on the bottom would look nice though.

[VDX]

... is a 2-sided batthroom mirror with flat+concave sides enough?

Viktor

[kecked]

flat plates and pitch. have fun. look up making a telescope mirror. or Slight compression of the glass or 3d printing. or sandpaper on a baseball on acrylic

[Datsurb]

My wife have a makupmirror that i think would be what you are looking to find. Might be to deep in the middle, but i beleive you can pick this up "everywhere" for a cheap price.

Espen

[laserist]

Reflecting telescopes for kids - have a 4 1/4 inch f8 to f10 mirror about 1/2 inch thick - are usually available used.