Started Mary Kay in late October of this year

I started a Mary Kay Direct Selling business on October 29 2024. 

I have about 2500 in expenses, including inventory that has not yet been sold. I would prefer to claim all as regular expenses and be done with it. Can I do this for the inventory portion of the expenses? 

If I have any income from it - should I list it even if it is less than that? $600?