Polls
Write the question and its choices, and choose when it closes: when you close it, or after a timer.
Everyone waits in a lobby until you start it, and a timer only starts counting then. With Join the activity on you vote too, and can still close it yourself with Close in the bar.
When it closes, the choices are listed by votes, most first. The people who joined see them only if you let them, and you can show or hide them again at any time, even after the poll has ended.
The randomizer
People join with a name and you spin to pick one. The reel shows how many are in the spin, and anyone who joins after a spin is in the next one.
Remove each name once picked stops a name coming up twice; Reset puts everyone back. Join the activity puts you in the spin too, under a name you type like everyone else.
Its results are always shown: the picks, numbered in the order they came up.