I don't do formal tastings any more - it became just too much for me to handle! I simply explain that unlike a bakery, I don't have a daily supply of fresh baked goods. As a one-woman show, I simply do not have the time requirements to specially bake products for each consultation, in addition to my weekly orders. What I can offer them is a sampler package of the flavours I am baking to fill that week's orders. I prepare a plastic container with cake pieces and fillings that I am preparing that week and they can pick it up on the Saturday or Sunday following my weekend deliveries. I write on the lid what the flavours and fillings are.
If they want a particular flavour, then I will look through my upcoming orders and tell them which week I will have that flavour. They have the option of waiting for their sampler package or taking the current week.
I don't bake separate cakes for these samplers - when I level my cakes and remove the top (which is the best part in my opinion

), I cut the top into squares and put them in baking cups.
They just come and pick up their package and leave so that means any one of my family can answer the door and give them their cake box. Their consultation is done separately before the sampler package.
Most of them book right at the consultation and are very understanding and I haven't had any negative feedback. And I'm very lucky that only maybe 5% of my clients ask for samples so it is very easy to manage this way.
I bake for 4-6 wedding cakes per week so usually there is enough variety for me to choose from.