Travelzoo offers a Smart Destinations Go Las Vegas 3-Attraction Explorer Card with prices starting from $68. That's the lowest price we could find by $7, although we saw this card for $10 less last week (since expired). Choose from 10 attractions including the hop-on hop-off bus tour, Madame Tussauds, High Roller observation wheel, The Mob Museum, and more. The promotional value must be used by March 31, 2017.
Of note: A 5-Attraction Explorer Card is also available from $99. That's another price low by $10.