It's bound to amaze your kids.
Paradox 5 Minute Tea Timer / Hourglass - Sand Flows from Bottom to Top
3-In-1 Tea Timer, Includes 3, 4, And 5 Minute Sand Hourglass
3-In-1 Perfect Tea Timer, Includes 3, 4, And 5 Minute Sand Hourglass
One Minute Sand Timer, 6Pcs Blue Mini Glass Hourglass Timer 1 Minute Sand Clock
10 Minute Sand Timer, 10 Min Wooden Hourglass, Wood Mini Sand Clock, Ten Minute
