Free: Contests & Raffles.
The bad news is the deer numbers around Ellensburg are down to practically nothing. Look at the harvest report for Naneum, Taneum, Mission, and Teanaway. Teanaway is probably your best bet, but it gets tons of pressure from people driving over from the westside.
On a side note bobcat would you necessarily correlate harvest reports to overall deer numbers? This might be a side topic in itself but I think there are other influences on harvest.