. . . that the word custody derives from Middle English custodie, from Latin custodia, guard?
. . . and that there are lots of resources online for things to do together with your grandkids?
For example: The Pine Cone Bird Feeder
A fun craft for a child to make at home, school, Cub Scouts, Brownies, or daycare. The children will have fun watching the birds eat.
Source: Grands Place