Bag of Nearly Infinite Cookies

This legendary item is was made by a unknown high level mage who also was an adept baker.  He has many bakeries on various planes of existence that somehow supply this bag it's never ending supply of cookies.  This bag is actually the product of reverse-engineering a bag of holding.  However, the difference is this bag (through many sources from various planes of existence) generates cookies at roughly the same rate the cookies are withdrawn from the bag.  Exception, turning the bag upside down will cause it the bag to close abruptly with a 10 minute delay. 

The bag is rumored to be a sample bag intended to provide samples for prospective customers.  

The bag will generate cookies as follows from a 1d20:

1 Chocolate Chip

2 Chocolate macadamia nut.

3 Sugar cookie

4 Snickerdoodle.

5 Double chocolate chip.

6 Oatmeal raisin.

7 Gingerbread Cookie

8 Gingersnap cookie

9 Macaroons

10 Oreos

11 Bacon Oreos

12 Molases cookie

13 Peanut Butter cookie

14 Carmel Pecan cookie

15 Bourbon Spice cookie

16 Bacon Chocolate Chip cookies

17 Brownie Cookies

18 "Turtle" cookie (not actual turtle)

19 Red Velvet Cookie

20 Choice of person who rolled the dice