Looking for a (slightly) concave mirror

[Dr_Evil]

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.

 

[Encap]

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.

Eisco LAbs has several different sizes available --see: https://www.eiscolabs.com/search?type=product&q=*concave+mirror*

Here is one of them approx 5" --Eisco labs Concave Glass Mirror, 10cm Dia., 10cm Focal Length
https://www.amazon.com/dp/B00COQGBDS?tag=onlsho0d10-20