Preserving the stickers on my Trumper soap bowls

I've had my Geo F. Trumper rose and sandalwood soaps for a few weeks now. I keep them above the sink in my small bathroom, where there is high humidity and moisture content in the air during showers. Now the labels are starting to sort of "bubble up in wrinkles" and I was fortunate enough to get GFT to mail me replacement stickers for the bowls.

Now I am faced with the task of trying to preserve the replacement stickers on the bowl so I can keep it looking like new for years and years (and so I don't have to keep replacing them). I have thought about peeling the old stickers off, then placing the new ones on and spraying a clear varnish on there to seal it off from moisture. Would that work? Does anyone have suggestions?

The solution you came up with yourself was about what I was going to suggest. If you're married, though, and your wife has any clear fingernail polish, it might be a lot easier to peel the oldies, put on the new ones, and paint lacquer over the top. So you don't get sprayed lacquer on the wood. Leave a slender border of lacquer around the edge of the label to hold it on. The other solution would be to razor out a piece of packing tape and put that over the label.