Other Promotional Opportunities
Why don't you promote your event in your organisational newsletter, community newsletters, and the newsletters of affiliated organizations?
This type of promotional activity is not expensive, and it can be highly effective - reaching a variety of people with one hit. Make sure the article you write is eye catching, entertaining and engaging.
Another excellent way to promote International Day of People with DisAbility and your event is to put some information on your website.
Local councils will often have an information page on their website promoting events in their area. You might consider contacting them with information about your event.