16 Segment Red
For the techies out there, here's a bright red 4 hours countdown timer with a bright red 16 segment LCD font on a black background.
Great for helping keep students focused and motivated by working in class.
And if 00:00 isn't the right timer for you, it's easy to change it to whatever you need.
Roboto White on Black
A simple, basic timer with a heavy black font on a white background
Timer with a colorful gradient background
16 Segment Green
Neon green LCD font on a black background
9 Pin Green
Bright green dot matrix font on a black background
9 Pin Yellow
Yellow digital LCD font, DM-80, on a black background
Solid, bold font on a background of fireworks. Great for July 4th or New Years celebrations.