Here’s a kettlebell complex from Vol 2. of Kettlebell Complexes for… Fat Loss! Strength! Muscle! and Mobility! (Pre-order!)
The scheme? 5 reps each: snatch, clean and press, squat, row, push up. Run the entire sequence on your right then left. Hit as many quality rounds as possible in 20 minutes. 16 – 20kg for men; 8 – 12kg for women.