Makes me think: A fun puzzle (to solve, anyway) would be to have lots of black-and-white solves: chess pieces, go (game) stones, old newspapers, old photos, simplistic thinking, and, yes, cookies.
Supposedly you can name one online, but I doubt NASA honors the purchase
10A
Apt anagram of "rose"
14A
Why bee stings hurt
15A
Fit as a fiddle
16A
Oaf
17A
Beginning of a mural about sports?
18A
Shepherd of rocket-sheep?
19A
Beginning, to The Bard
20A
Not sick?
23A
Mineral suffix
24A
Grains of avarice?
25A
Settled?
31A
Talk big
32A
Fighter Rousey
33A
Rise: abbr.
36A
Emperor who became a much worse ruler over time
37A
Like a monster found in a New York canal?
38A
Paycheck abbr.
39A
Proterozoic, e.g.
40A
Arya's sister on "Game of Thrones"
41A
Character with a Subsequent Moviefilm
42A
Lavish?
44A
Climb a pole: var.
47A
"Mouse" in
48A
Hopeful pursuit?
54A
Baseball brothers' surname
55A
Range that straddles
56A
Capital of Belarus
58A
Its three most common cluings are "down in the dumps," "down," and "in the dumps"
59A
Lao and Shih
60A
_____ up one's sleeve
61A
Explorer Hernan de ___
62A
Fish with feet?
63A
Rocker Bob
Verticales
1D
Third year of 36-Across's reign
2D
Wine opener?
3D
Being broadcast
4D
Lambasted
5D
Chalky cylindrical candy
6D
Persian for "king"
7D
It's tall and told
8D
What there oughta be
9D
Obama's Secret Service codename
10D
Person who creates energy, in a way
11D
Valium maker
12D
Spilled someone else's beans
13D
Uses a swizzle stick
21D
Number of things ranked in most WatchMojo videos
22D
Showcase of vocal range
25D
All played out, as a topic
26D
You know what? All I need to do is say "cookie" and you'll know what the word is. I don't even need to say anything about the cookie. So there you go: cookie. That's all I'm saying!
27D
Tip off
28D
Reznor of Nine Inch Nails
29D
Basketball game to five points
30D
OG CPU
33D
How rich people go out?
34D
"I've battled hard with the face in the mirror / Every ____ makes me dig down deeper" (The Score lyrics)