This could be done with sight words, numbers, letters of the alphabet, etc!

Literacy centers - the first six months sight word swat as a literacy centre. Dollar tree has giant fly swatters!

Floating ping pong balls phonics Awesome idea and easy to do. Good for IP play time

Alphabet Sounds Fishing and Matching game

Alphabet Sounds Fishing and Matching game. Use ping-pong balls to practise letter names and sounds with a fun fishing and matching game for pre-schoolers!

20 Outdoor Phonics Activities

Summer Writing Activities for Kids - Make an Easy Outdoor Writing Center for Preschoolers. Great for Kindergarten Readiness from Lalymom

20 Outdoor Phonics Activities

Watering an "Alphabet Garden" teacher calls out letter, child waters it - Easier version: choose between just 2 letters.