I have hip tossed, tripped and so on. The only thing I have never done and would probably get in trouble for is shooting a double or a single. Just make sure to trip/toss while spinning him violently. The spin will help the takedown be successful and draw attention away from what you are really doing.
Specifics:
One that I love doing is clinch, push him against the ropes, use the momentum off the ropes to spin him to the center and jodu trip his outside foot while spinning. Then stand over him and wait to be pushed back.
Another one, Catch a kick, if a sweep is unsuccessul, tree-top the leg, drive away from the ref so he can't stop you and inside trip his only base lag and slam the hell out of him. Go down with him and try to drive your elbow into his liver, heart or solopexis(sp?). Then quickly get up and stand over him and wait to be pushed back by the ref.
Another one, Plum, knee, slip the arm over and get the "spinning wheel" (hope you know what that is). Knee a few times, he'll either pull away or power towards you. If away, use the rope momentum trick I mentioned earlier. If towards, go with his trust like a judoka and foot sweep him while twisting his head/neck as hard as possible. Stand over him and wait to be pushed back.
And so on.