Head to your local Walmart and check out the toy clearance. I found the Sunny Day Walkie Talkies at my local Walmart for ONLY $4.50 (Reg $16.88). YMMV
Walmart In Store Clearance Disclosure: Clearance in store is YMMV meaning what is on clearance at one store may not be at another. Clearance items and prices vary widely by region and even city to city. Check your stores often and if it is not marked, scan at the self service scanner or on your Walmart App.