Let everyone in the house know when you'll be praying the daily salaat with Prayer Time Clockfaces.
Or, use them to show the time that each salah actually comes in. They also double as a great math activity since you can give kids the opportunity to change the clocks as needed.
These were posted initially on TJ Islamic Studies in a larger size, but I shrunk them down from full page for each salat to four per page so that I didn't have to do so much cutting and could save space on the wall.
I highly recommend laminating them for durability and so that you can change the times. We had to pencil in the hands and times because I didn't have any contact paper or laminating sheets on hand.
(Both are in black and white and PDF formats.)