Invitation Wording Samples by InvitationConsultants wwwtationconsultants›Home›sample wordingSample Wording. At a loss for words? Browse our Volunteer Appreciation wording below. Once you've found the perfect wording for your corporate event, shop InvitationConsultants' fabulous selection of corporate event invitationsr with ease and excellent support from our expert staff of consultants. 8 Volunteer Appreciation Invitation Wording Ideas Home » Communication » 8 Volunteer Appreciation Invitation Wording Ideas. 8 Volunteer Appreciation Invitation Wording Ideas. Oct 2, 2014 Oct 5, 2014 by Brandon Gaille. More than 64.5 million Americans over the age of 16 volunteer each year. An average of 3.2 billion hours per year are given and more than $23.2 billion saved due to the time given.