I think the souffle (sp?) cups with samplers will help. What if you put a note up asking them to not open the clamshells or something to the effect of get a salesclerk if you need helping opening a clamshell. Or with your basket of souffle cups ... Put something like We don't blame you for wanting to sniff each and every one, so please take advantage of sniffing these and please don't open the clamshells? I know I have had many people after opening the clamshell, slamming it down on the counter, and they do start looking ratty after some have looked at it.