just mounted a rhyncostylis gigantea 'peach'
 

I didnt have anything special to mount it so I just used a clay dish and some sprag long fibered moss. Anyone know if this is good? Didnt feel it was doing good potted!!

From what I've seen of the many pics of Rhynchostylis retusa in the wild thanks to the people from India here on the OB who took them. They grow on trees without moss, but the tree trunk is fairly wet.

Maybe try a wood mount, and put the moss in the back of the mount and water front and back.

What's your cultural regimen btw? Your dissatisfaction with the way your Rhynchostylis gigantea may not be just because of whether it's mounted or potted.

>>By the way I had two dens that had no roots that were healthy so i sprag and bagged them after a couple of weeks I looked in the bag and one still had green leafs and the other not so good. So I was going to trash them then I looked closer and saw one tiny root forming on the green leaf one. But unfortunately after removing some dried up stuff I removed the root by mistake ... how disappointing .. If I mount them how should I ? thanks alot they are noids as well and they do not get winter rest. Thanks for all your help!

First off, I don't know how your Dendrobiums would fare given what you've said so far. I can't reassure you anything good would happen.

However...

As far as mounting Dendrobiums are concerned, it may be pretty easy.

Find a wood mount, and place the Dendrobium on it without moss and tie with twisty wire (I'd use twisty wire instead of fishing line for the medium to large Dens, you can use fishing line for the smaller ones, I'd use something sturdier though for the giants, like semi-coarse yarn or something) until some new roots take hold.

If you find that mounting without moss is growing them too dry, then add a thin layer of moss around the roots.

In your case, the Dendrobiums grow upright.

Should you delve deeper into the culture of the myriad of Dendrobiums out there, you'll definitely encounter ones that grow pendulously.

If this is still not clear, check out other people's pics here in this forum.

Just to cover a little more ground...

Some Dendrobiums are lithophytes (they grow on rocks). One popular lithophytic species is Den. kingianum.