I actually had to do this for one of my leagues. I needed to set the draft order but no one was going to be available to witness the drawing of names from a hat.
Excel has a formula that generates a random number between 0 and 10, so what I did was enter this formula in 10 cells assigned to each team in alphabetical order and when you hit enter it will give you 10 random numbers next to each team name. Each team drafts in order from lowest to highest. (You have to use decimals or the numbers will repeat.) Once I had an order, I took a screen capture and sent it to my league.
Here is the formula - =RAND()*(10-0)+0
Obviously, you can do this as many times as you need to until the numbers come out in your favor but this seems much more official and people will believe you actually did get the first pick.