Yes you can! For each reward over €30 you are entitled to choose add-ons from the menu on the project page. Simply calculate the extra pledge from the menu below. You can choose any quantity of the parts included. Add the extra pledge to the original award pledge - this can also be done afterwards by changing you pledge.
Important: don't forget to send us a message with the desired add-ons and we will send them together with your reward in September!