Raising a hand is a thing of the past!
I use these $1.00 (Dollar Store) battery operated (2 - AA batteries needed for each one) push lights as "game" buzzers. At this cost, they are a perfect tool to use in a small group. These lights come in all sorts of shapes and colors!! Of course I chose the smiley face lights -- perfect for an elementary school counselor!
If I'm doing an activity where I am asking a number of questions, to make it a little more novel, I give each student their own light. I explain to the students (very dramatically) that the lights are to be pressed carefully - not smacked, punched, slammed, etc. Otherwise, they will break the light and I will have to take their light away!
Students turn on their light to indicate they have an answer. I attempt to call on the first student who turned on his/her light....but in the case of a "tie" I go with the student who hasn't answered in awhile or who needs the most practice with the particular skill we are working on.
For some crazy reason, these little lights are so intriguing and fun for my students!! The kids absolutely love using them!!