[Quick Question] - Presta shop / online shop

[ImAMixOfThorAndAchilies]

Hey guys,

I have been looking around unsuccessfully, but does anyone know of a online shop that is easy to use and allow customized product prices and allows product addons?

So for expample

I want to sell a cupcake as a base product

then on the order page there are option

-double the size of the cupcake +5.00
-triple its size +7.50
-Double the frosting +3.00
-Personalize it +6.00


etc...

thanks for the help... beeing trying presta mega shop but cannot get it to customize. it only have base prices.