Yeah, they are available in the Living Empire for 1 and they give your knuffel 70 exp. per hour.
Just as you can buy each of your knuffels the Sour Red Apple and the Sweet Tooth Cupcake to give your knuffels a certain amount of Energy/Happiness, so you won't have to feed and play with them every time you want to dig. That's how all of my regular knuffels thrive I have spare apples and cupcakes if you'd need help with getting them
Look in the Living Empire and filter Functional items, there are several.

Thanks for the hint!
I didn't know these items existed! I've been gone too long

Well, if you don't need the apples and cupcakes I'd buy them from you
And in case of the lava lamps: If you would borrow them to me I'd really appreciate it! When would you want to have them back?

No problem, it can be overwhelming after a long break, there're many new features on the site.

I'm sending you a trade with the apples, cupcakes, and lamps. Idk when I'd like the lamps back, maybe a month or so? I don't buy new knuffels that often anymore so I'm in no rush.

Alright, I'll send them back to you when I don't need them anymore
And you just send me a message when you need them back earlier.

And what do you want for the apples and cupcakes?

I don't really want anything for them, I still have spares so you can just take them

Aaaaaaaw Thank you so much!

Thank you for the trade!!

You're welcome, guys!

Hello.

I am looking to buy some 20 Golden Crowns, if you have them?
At 60 food a Golden Crown, that would come to 1200 food total right?
Would this trade be acceptable?

Of course, hun! Trade sent