Hotel/Resort/Conferences:
On the last night of the conference,
fill up the bathroom sink and leave a rubber duck with your logo in the sink

Home Improvement/Kitchen and Bathroom Remodel/Contractor:
Once you have completed the job,
fill up the kitchen (or bathroom sink)
with water and leave a rubber duck
with your logo in the sink

Fundraisers/Duck Race:
Receive a rubber duck with your logo
when a donation is made