Alright Viv, at 10 (and she is 10 for all practical purposes), consequences should be firm, but not necessarily logical consequences. She is old enough that she is performing an internal risk benefit analysis. The biggest key to any type of punishement (as the kids get older) is to make them as painless on you (the parent) as possible, while providing a huge incentive to behave in a positive manner. Thus, your classic grounding is, in my opinion, one of the worst types of punishment available to parents. In order to be effective, the partent is equally trapped with an obnoxious, moody, and testing child.
For things left in common areas where the standard is that it be removed when no linger used, we NEVER allowed a delayed punishment, we would call to whereever they were and interrupt whatever they were doing and require that it be corrected immediately. If you have to appear in public to get them (like they are at a park), fuzzy slippers and anything pink is preferable (particularly if your husband is going). Nothing beyond forcing them to come home to spend 2 minutes putting something away then going back to play is required. In terms of coming home early, that is not really strong enough, having to come home in the middle then left with deciding if it is worth going back has a much stronger mental impact. Either way you have the same involvement (having to call her home early, or having to call her home NOW), so your focus should be on the impact the 'punishment' has on the regular behavior patterns, and how much thought about the situation is required. The ultimate goal is to have the kid THINK about the behavior WITHOUT you making any comment. Any cost/benefit analysis you do for your kids is totally lost. There are certain 'life lessons' that you cannot teach, and if you try, you will be blamed for them (thus losing the point of the lesson).
As to the gross issue of the proper interment of a julienned human being, I would have voted for creamation (and probably also made the comment, of course, I might have made a sushi reference also).
:king: Snow (sick puppy) Dog