So many good ideas here, almost too fast for my brain.

Right now I have a limited selection of flavors, so each of you can choose what you want on your pastry given the following set of choices and suggestions.
Apricot
Cherry
Pear
Apple (includes a trace of alcohol)
Almond Paste
Pastry Cream
Cheese
I would highly suggest including Almond Paste in your selection, but it's not necessary. Additionally I wouldn't choose more than one fruit because it confuses the issue.
Your best bet, IMO is Almond Paste and a fruit, or cheese and a fruit. I can honestly say I haven't made one with cheese, but I'm accomplished enough that I promise it won't be bad. I will need to offer it as an option when I go live, so I might as well do it now.
Each of these sample pastries will be a ring about 7" in diameter. If I can figure out how to package other shapes without destroying them I will. I'm making a few batches for a Valentines Day event and I'll post pictures.
Each pastry will be topped with a sugar glaze and sliced almonds.
For this first phase I'll send finished baked goods since they do not require refrigeration, and I can better afford this little experiment. I'll continue to investigate the dry ice situation for the frozen option. It may not be reasonable without a pretty significant up-charge. That said, to truly appreciate these, fresh baking is pretty key.
Thanks for everyone's enthusiasm! I got some very good feedback this morning from an event I did on Friday. I hope they translate well through the mail.