To taste one for yourself, your best bet would be a local farmer’s market or a fruit shop specializing in hard-to-get produce. If you do, you might come across the "yellow crimson," which resembles pink watermelons, the "buttercup yellow melon," which is seedless and exceptionally sweet, the "desert king," which resembles a cantaloupe, or the small, crisp, sweet, and juicy "yellow doll."