Sorry I forgot they don't actually dip it in chrome for plastic parts. It's more like a paint and they spray it on. At least that is the process I have seen for plastics. When done correct it looks good.
Mine stuff was done at a small shop it Calgary that also does upolstery but they have many places that can get it done. There should be some shops in your area that can get plastic plated. It's not a traditional metal plating job.