I'm not sure about body weight exercises, but there are many you can do. The ones I know of off the top of my head are jumping jacks, "jump rope," lunges- both front and backwards, squats- and there are many of these, pushups- on the ground or against the wall, and ab exercises such as crunches. You could comprise a list and give yourself a certain amount of time to do each and sort of cycle through them a certain amount of times to create your own circuit training. I'm sure there are very many more that you could include as well.
My suggestion is to get some exercise DVDs. Personally I've tried Biggest Loser Cardio Max, Jillian Michaels' 30 Day Shred, and Walk Away the Pounds. All of these are great. I have an issue with high impact exercises so didn't stick with the 30 Day Shred, but it was a GREAT and perfectly challenging workout. I also highly recommend trying at least a couple short kickboxing videos if possible, you can find many online (youtube or SparkPeople) that are great. There are many other relatively inexpensive DVDs like these that are under $15 a piece. I suggest getting 2-3 to try out in case you don't like one or can't do it right away.
Starting weight: 309.4
1st goal: 10.4 pounds, 299 by July 2, 2014 (met June 25th)
2nd goal: 30 pounds- 10% of remaining weight, 269 by October 15, 2014
| current weight: 288.0