Good Questions: Fabric & Bedding to Go With Cards?

Katy sent us an email: I found these vintage looking alphabet cards at Michael's (shown above) that I love. I do not want to have a themed room or have anything matchy-matchy, but I cannot find any fabrics or bedding that will compliment the cards...

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...I want to have gender neutral colored room, possibly a robin's egg blue or turquoise, but I am not sure of anything else. Any ideas?

Please share your ideas with Katy in the comments below...thanks!