So the Rotary Club in Olympia is hosting their 6th Annual Military Family Support March on September 13th at 9:30am. I'm going to try to collect donations for it, you can march and donate whatever you want or just send donations.
It's the Hawk's Prairie Rotary Club and they have raised over $200k over the last few years. The money is used to support the family readiness groups, donate to the Fort Lewis & McCord food banks, Fisher House, & Madigan Foundation. They also buy childcare coupons, give holiday baskets to needy families and provide military dependents scholarships for college.
The website for the march is MilitaryFamilyMarch.com

If you just wanna mail a donation or collect donations in your community and mail them in together, the address is:

Military Family Support March
Hawks Prairie Rotary Foundation
PMB-122
1401 Marvin Rd. N.E., Suite 307
Lacey, WA 98516-5710