Something easy to do for this would to do a comic, but have text about "friendship being a risk and sometimes when you take that chance you lose but in the end it's a bet worth making" overlayed over pictures of points in their friendship that fit the phrases.
For example, "It's a risk" would be their agreeing to work together, "sometimes you lose" would be the coin flip, and then "it's worth taking" would be them reuniting on the meteor and sharing a brofist or something.
Re: Dave and Terezi "Taking a Chance" on one another
For example, "It's a risk" would be their agreeing to work together, "sometimes you lose" would be the coin flip, and then "it's worth taking" would be them reuniting on the meteor and sharing a brofist or something.