Suggestions, please - BBQ activities/games

I need a few activities/games/team building things for the group of about 50 adults to enjoy at a BBQ. Thought I'd pick everyone's brains for both great, old fashioned favorites and newer, more creative ideas. My only requirements are that the activities are relatively quick and low cost.

At our annual employee picnic yesterday they used a "Survivor" theme.

The employees were split up into teams. I think 10 teams of 10. 2 losing teams were eliminated after each event.

There was a water balloon pass/toss. Balloons were passed down the line and put in a basket. The 2 teams with the lowest number of intact balloons were eliminated.

Then a find the object game. The team captain directed another member who was blindfolded to finding several objects on the ground in a timed event. 2 teams eliminated.

The next was twister with 1 member from each team participating.

Then a scooter relay race.

Then a kayak race of one member from the last 2 teams. The winning team won a $15 gift certificate for each member.

Thankfully, we lost the first event, and I was able to leave a little early. I'm usually not a fan of these kind of things, but it was sort of fun.

You can easily expand or alter the games, but the Survivor theme gave it some interest.

Cornhole