Lot Of Four Unopened Retro Toys 1996 To 2000. This is a lot of four unopened retro toys. All are still sealed in original packaging. There are two hi fllier All pro metal whistles from 1996. There is a Duncan imperial yo-yo, green from 1997. And a slinky pet keychain from the year 2000. All toys are an original packaging, unopened and an excellent condition.