I have to highly disagree with all of you who say don't use gimmicked tricks. The problem is not in gimmicks, and not in ending clean, it's in drawing too much attention to your gimmick in the first place. As was said before.
I think too many great tricks get passed up on because there's a gimmick that might not be examinable when the trick is done. Quit skipping these tricks, and instead learn the technique called routining. If you routine correctly they won't ever have the chance to even think about asking, much less actually asking.
I have a lot of gimmicked effects and learn to just routine them out of the picture before the audience can ask.
Makes your life easier as you're not wasting time practicing how to ditch/switch anything for an object that can be examined. Plus, ending clean and able to show off just adds that much more to your presentation of skill and mastery.
I disagree completely. Learning to switch or ditch is never a waste of time, and a skill that will add to your mastery. Also becoming a master of something is about everything but making your life easier. If you want to be the best you can be you have to go out and make your life hard. Practice is hard, performing is hard, scriping is hard, routining is hard. Being great is hard. So don't look for an easy way out. Please if you're doing magic and trying to find the easiest way to do it stop. Find the best way to do it regardless of how difficult it is. Go for the best not the easiest.
And ending clean can add to your presentation but too many times we focus on the idea that we have to end clean and allow our spectators to examine things, and prove to them that we are doing real magic. I find that most of the time this is overproving, and if you do the magic right, the spectators won't usually want to examine, they'll want to see more magic. Don't present your magic as look at this trick, but instead as hey come experience this special moment with me.
That all being said, the easiest way to end clean in my opinion is to just put the prop or item in your pocket as soon as the moment and climax is waning. Then when they ask to examine it, pull out a duplicate ungimmicked item. Simple as that and no real difficult sleight of hand there.
There are better ways though, so search those out, learn some false transfers, and most importantly routine, routine, routine. And then practice it.