Grab a sheet of Avery Labels, one of those thin magnetic calendars you received in the mail over the holidays--generally from a mortgage company or a realtor--and make your own magnetic words.
For my Curbly-themed terms, I used Avery return address labels, #5267. I formatted them using Times New Roman, size 19 font, and aligned the text both vertically and horizontally. Although the #5267's were the perfect height, any size would work. As would any font, of course.
I ripped the decal off the front of the calendar so its print wouldn’t show through. A few cuts to either end of the labels and I had custom words.
P.S. A label maker would work slick for this project too!