During trainings I use either a random number picker or a random name picker to give away doorprizes, depending on the size and mentality of the group. (I did the fruit machine with one group of high school people and got the strangest look!)
With Classtools.net I have variety of tools, graphic organizers, and timeliners at my disposal. My favorites are the Random Name Picker using the fruit machine and the countdown timer. I once even had my son tell me all the punishments he thought was fair for his very bad behavior and then we let the random picker select his punishment. He stood in timeout for 10 minutes that time because the computer told him to and mommy was no longer the bad guy. I have also used the counter. Joey loves the music to race against. I use the A-Team and grant him an extra 9 seconds when we only need a minute.
The Randomizer.org site is dry at first glance, but there's a lot here. The flipping a coin can be fun, especially if you select an antique coin. I use to use the random number picker here. We used the dice once when I couldn't find the dice I needed for a game (I forgot them at home actually).