There could be many ways to approach such implementation.
The most obvious solutions come from determining the properties (insulation, cheap way of creating a volume, impact resistance,...) and using the material as a substitute for known applications (insulator for refrigerators, packing material for transport,...). But it will be challenging to make it economically viable.
What could be interesting and is less obvious, is to create a framework where you assess consumer behaviour within a popular product category, eg. beauty&care or travel or furniture products. You could then list all the items in that category and think “what if we replace, slice, wrap, cover, support,...this with my mycelium”. Match those with frequency of a certain need state, frequency of purchase/disposal, desired product lifetime,... and you might end up with interesting concepts. Sometimes, you will find new research terrain for mycelium.
Will thin-film mycelium be a suitable candidate for make-up wipes?
Will mycelium blocks, wrapped in bacterial leather be useful when used to create luggage?
Could mycelium wrapped with hemp cloth and supported with flexible wood form a way of creating matresses or couches?
Thinking this way may also inspire you to research yet undiscovered properties or new manufacturing experiments.
Just some late night thoughts though!