Create a 3-day firesale or special offer.
Put together some kind of special package deal that you offer for 3-5 days only.
This is another great way to get affiliates active – again, if they want to cash in on the opportunity, they have to do it during the 3 days of the firesale or they’ll miss out because the offer is no longer available.
Note: A variation to this idea is to limit the units sold.