Assistance with a simple project

hello - could i get some help with a simple project which requires use of the router? I need a custom piece of half-round trim cut down to 7/8" width by a 3/8" radius. I have not purchased a custom router bit so I’m hoping we have something available which will work. Looking to head over to the space sometime this afternoon. Thank you in advance.

Liz
214-985-7184