Codes and Ciphers:

Write Coded Messages with Legos!

https://frugalfun4boys.com/lego-secret-codes/

Printable Secret Codes

https://picklebums.com/secret-codes-for-kids/

Pencil and Paper Games:  

Fun Pen and Paper Games to Cure Boredom (+ video instructions): 

https://www.whatdowedoallday.com/pen-and-paper-games/

8 Fun Pencil and Paper Games for Kids (+ printables): 

https://www.todaysparent.com/family/activities/pencil-and-paper-games/#gallery/pencil-and-paper-games-for-kids/slide-1

Pencil and Paper Games including strategy games, drawing games, number games and more.  (Currently blocked on Chromebooks--access on home device)

http://www.papg.com/

15 Hand Clapping Games and Rhymes with Video

https://icebreakerideas.com/hand-clapping-games/