Running until August 12th, it looks like you can grab a free Unikitty Castle Room by spending $25 USD or more on Unikitty LEGO® sets. The actual castle room seems to be a brick built couch, terrarium/pet, and a Unikitty figure in a cardboard cutout that folds out from the packaging the parts come in. It also comes with some stickers. I can’t say it’s particularly temping to me but it’s free if you happen to need parts in those colors, and I won’t begrudge you for liking Dr Fox’s lab.