Here is some space-themed notepaper that could be used to make mats for station activities.
Illustrator : Julie Clough
Planets Clip Art Collection for Personal and Commercial Use
Cute solar system
This is a set of 19 PNG files with transparent background,19 JPG Files, one 12" x 12" background image and 3 different digital paper designs. The digital papers are 8.5"x11" JPG files. All these files are watermark-free.
Retro Rockets Clip Art Clipart, Spaceship Rocketship Space Rocket Ship Clipart Clip Art Vectors - Commercial and Personal Use