On Thursday, January 9, 2020 at 9:26:27 PM UTC-5, wrote:
I'm looking for ideas on how to make professional looking placards/labels...

I've used https://www.frontpanelexpress.com - they do a great job.
They can do enclosures, for example lettering and cut-outs (DSUB, LED) on
the CAN-repeater I designed for Antares:

http://www.nadler.com/Antares/WCAN3_...ed_closeup.JPG

Great for larger parts like a fuse sub-panel as well as smaller stuff.
Hope that helps,
Best Regards, Dave