Unfortunately slots go in and out of Vegas quickly, except possibly at CET properties.
$1 Airplane was removed from Aria a couple years ago, both SDGuy and I are sad about that. They still have penny and 5 cent airplane at Aria and Cosmpolitan.
I did not see All Stars VIP at Cosmo last month and I looked. I might have missed it but likely it's gone. There was one All Stars VIP slot at Aria as of January 2 this year, not sure if it was All Stars VIP 2 or not.