Boise would make the most sense as far as a host city for such an endeavor. I think a section of street devoted to famous Idahoans would be a cool idea.
In case you've been living under a rock, Harriet Tubman will soon be on the twenty dollar bill. No disrespect intended to her tribute, but the change in money made me wonder who in Idaho could deserve the honor to be on money someday. Here are some ideas. Please feel free to add your own and vote.