Yep-- Go with the paint swatches. Absolutely.
I can't speak for all of Aspiedom, but I HATE surprises. First I have to blindly guess the correct response, and I know I'm going to cause trouble if I'm too happy/not happy enough/don't make the right expressions of gratitude. Then there's the whole "adjust to change thing," which can throw off the necessary correct response no matter how much I like it (or will like it when I get used to it).
Then, at least with me, there are a couple more problems. One, now I must reciprocate the surprise, or else I am a selfish taker. And I'm even worse at thinking of surprises than I am at receiving them. Two, I'm completely and totally insecure, and expend a great deal of energy being constantly vigilant for failures and mistakes. So I'd be wondering, "Did you do this because I didn't do a good enough job at it? Did you do this because I complained too much?? Do you resent me now??? Are you going to be mad if I'm not effusively grateful enough???? OH GOD!! !! !"
Paint swatches, however-- GREAT IDEA.
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"Alas, our dried voices when we whisper together are quiet and meaningless, as wind in dry grass, or rats' feet over broken glass in our dry cellar." --TS Eliot, "The Hollow Men"