Unfortunately, we cannot accept new items at this time that are not already in the marketplace or in the categories listed here.
If the item you want to sell is a part of the categories listed above, then you can submit it under another item. Our verification team will create a new product page for the new item.
We are currently re-working how we accept items in the marketplace so that the whole process will be much easier and faster.
We are also working on a better way of adding products not listed in our catalogue, so you can list even more items.