I don't see anything about Marshmallow on craigslist.org (http://craigslist.org/), so I recommend posting there--and being prepared for a deluge of thinly-veiled ads for small-animal retrieval services, e.g. "So sorry your kitty is missing; I know how scary that can be. I listed my cat with ____, and they robo-called everyone..."
My personal advice:
1) Take the items with the strongest doses of Marshmallow's scent, and wrap & seal them in an unused plastic bag, for (a) tracking dog(s) to smell.
2) Make up 100 colored fliers with phone # tags, Marshmallow's photo (& microchip #) and "Reward $___" in very large font.
3) Put up 25 of them, and every time one goes missing, put up 2 more. Put them in vets' offices and at shelters, & look at the Found Cats notebook at animal shelters.
I've spent years doing small-animal retrieval, and the best site I've ever seen is lostapet.org (http://lostapet.org/), started by Kat Albrecht, author of The Lost Pet Chronicles: Adventures of a K-9 Cop Turned Pet Detective (https://www.amazon.com/Lost-Pet-Chronicles-Adventures-Detective/dp/1582343799/ref=sr_1_4?keywords=Kat+Albrecht&qid=1571170433&s=books&sr=1-4). I'm currently looking for a vehicle, but if you do a dragnet and someone's coming from Santa Rosa, contact me.
Name: Marshmallow Last seen Saturday 10/5/19 on Medallion Way in Rohnert Park at 8:30 am Domestic Long Hair Tan and brown with blue eyes 1 year old Very friendly If you find him Please call Reese at 415-572-7595 or
[email protected]