want information on when these were made

[Samantha Gregory]

The lava lamp is made by Pliable arts model no. 501 and the glitter lamp is model kl-289. can anyone give me information of them and when they were made and despite what people say these two look great though they were both made in china. the glitter lamp i got for free and the lava lamp i just bought for five dollars yesterday. any information will be nice thanks

[Samantha Gregory]

And yes gems my aunt had us watch a show from her childhood called Jem