You could smuggle them through with you when you go through the green channel. Alternatively you could divvy them up amongst the rest of the family and each bring a couple of club through (below the duty free limit). If that isn't possible it is still worth divying them up and each member going through the red channel and declaring the excess. I presume that the clubs are bought individually so each member of the family would only have to pay vat and duty on the clubs that took them over their limit.
I have gone to declare stuff in the past and been waved through because the one customs officer there was busy sorting someone else out and we didn't have much to declare.
I've declared stuff where I presented the customs officer with a big pile of recipts and when he's got 10 down and so far they've only been a few dollar each. He looked at me, shrugged and asked me to guess the total value and
charged me based on that.
You have every reason to be concerned with the customs people if you are smuggling goods through, for very good reasons.
If you bring your clubs back and then take them on a subsequent holiday and get stopped on your return you may still have to prove that they are legitimate and either purchased in the UK or have had VAT and duty paid.

Chris.