Answers:
combine mayo with condensed milk or honey.
Other Answers:
bid them and ask them
Tastes resembling candy? ... Is that really what they put on the menu? 'Mayo shrimp'? I found Apricot Mayo Shrimp Salad by Googling.
Can you give more info ... resembling what part of the banquet is it (starter, main course, extras, sweer/dessert) and what you can see within it.
I hold had mayo shrimp at a japanesse resturaunt, it is straightforward to make
Butterfly shrimp top near Mayo and Sashimi powder and put in a toaster oven at 350 until the shrimp are pink