The Whatcom Community Foundation is seeking applicants for three grant opportunities to support different areas of the community.
Nothing suspicious has been found so far, though an investigation into the threat is ongoing.
All three vehicles were extinguished without issue and the fires did not impact traffic.
No one was injured Wednesday morning.
The most recent round of grants is meant to create and maintain native language reintroduction programs.
He remains at the Whatcom County Jail without bail.
Investigators are still working to determine a cause of the fire.
The conference this year features David Bowles, E.B. Lewis, Dashka Slater and Jillian Tamaki as speakers.
The museum received the funding for the extended hours and free admission last year as part of a grant.
The accusation is under investigation, and Jason Archer was arrested after investigators found probable cause.