>Yes, but if a owner only wants one prize total associated with each box, so example:

Yes you can do it. I'll show you more examples:
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[Example 1]
Suppose the contest owner associates the box of a tiger picture
with 1 Colgate Toothbrush.

Then, this Player A clicks the tiger box and he wins
1 Colgate Toothbrush.

The second player, Player B comes and sees
the tiger box grayed out and so he can't click
the tiger box.

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[Example 2]
Suppose the contest owner associates the box of a tiger picture
with 2 Colgate Toothbrush.

Then, this Player A clicks the tiger box and he wins
1 Colgate Toothbrush.

The second player, Player B comes and clicks the
tiger box and he wins 1 Colgate Toothbrush.

The third player, Player C comes and sees
the tiger box grayed out and so he can't click
the tiger box.

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[Example 3]
Suppose the contest owner associates the box of a tiger picture
with 2 Colgate Toothbrush and 1 Dove Soap.

Then, this Player A clicks the tiger box and he wins
1 Colgate Toothbrush.

The second player, Player B comes and clicks the
tiger box and he wins 1 Colgate Toothbrush.

The third player, Player C comes and clicks the
tiger box and he wins 1 Dove Soap.

The fourth player, Player D comes and sees
the tiger box grayed out and so he can't click
the tiger box.
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