Zero Dollar stir plate - not counting stir bar

[mrmrsdsg]

Old plastic screw box
Four old screws
Old hard drive - sawzall and drill helped me get to magnets
CPU fan from old computer
5 volt power supply -tried a 10 volt but spun too fast.
2 old wire nuts

Only thing I had to buy was the spin bar
Amazon 3.99

 

[alien]

I wanna see a ghetto Erlenmeyer on it

 

[mrmrsdsg]

Let me work on that. Maybe a shallow bottom beer glass.