Expanding on what Mark stated.
1. Customer service- think Norstrom for years known for their legendary customer service.
2 Listen to recommendation- I myself have placed an order only to be told there is something better. Ask for a recommendation. I can say no more.
3. Snooze and lose- Pre order. Say something like, "Kenny, I am looking for a special something for next month. Please keep me in mind. I want 6 of them."
4. Ask for forgiveness- On the day the sneaker fish arrive give the spouse a gift equal to the cost of the extra fish. That way she/he can't raise too much of a stink because of the equal consideration.
5. Never order 1- Kenny himself has told it's best to order more than one. Shipping for two is the same cost for one. A true money saver. Example, if the shipping cost for 1 is 100 beans but for 2 is also 100 beans and if you divide that 100 in half that is 50 per fish. Which means you saved 50 and if the fish cost 50 then you just got yourself a free fish.
6. Sharp scissors- How did you get by with just scissors, Mark? I got my fish today and had to use a jack-hammer to help them gain their freedom. There is an unexpected bonus to this. Adding cardboard box, styra-foam box, 7 double thick plastic bags, air pillows, and the sports section of the South China Morning Post you have yourself about $10 in packing materials that if saved could be used for shipping anything fragile to grandma on her next birthday.
7. Nice pictures- Same theory applies to Playboy magazine (by the way this is the last month for the print edition) photos look nice but...