This activity can be adapted to a number of learning goals and many other materials can be used incl shaving cream. Read Practicing Sight Words With a Salt Tray at
Tough concepts for many English learners!
Great worksheets, already done, ready to download at https://www.edhelper.com/Spelling_No_Prep.htm
Excerpt of links screenshot (not links):
Lots of resources Explore Learning Sight Words, Review Games and more at https://au.pinterest.com/pin/450219293989640512/