Karen,
Yes, we got something similar or exactly what you are talking about. We made the mistake of ordering it (I made the mistake, that is) as a clear PMV. The little plastic string that came with it was also clear. The PMV had a little eye on it and the plastic thing attached from the trach tie to the PMV. Of course, the first thing that happened was we lost our new PMV BECAUSE WE COULDN'T SEE IT!!! DUH!!

Oh, well you live and learn!
The caps are much cheaper and easy to replace! It's like a little plasitc bottle cap without the threading on the inside. We got like 20 of them when they came and we have only used 2 so far! They are also bright red!!! We went ahead and tried the caps even though Dr. Molter said, "It doesn't mean you're going to get rid of the trach any sooner." - Again - DUH!!

You and I know that getting rid of the trach has little if anything to do with why our kids have trachs in the first place!! It's primarily for ventilation access!
I'd be happy to give you one if you want to try it! Hannah is her own little person, isn't she! What would we do without them!
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Melisande H. Mother to The Preeminent Grand Poohba Donovan (5/27/03), still some "resolving" apnea, on the autism spectrum and some cerebellar malformations. Trached since he was 6 weeks old. Recently DECANNULATED 4/16/09!! Big brother to Conrad!