I want to make rubber bands or stretch bands to be able to stretch. Can you suggest how to make morphable bands as posable props?. Just to get me going. I don't need the whole method. Thanks!

Props aren't posable. Only figures are posable (CR2 files). You have two choices: boning and morphing. I'd avoid the former for rubberbands. Morphing can be done in Poser using magnets or with another 3D app and some CR2 work (adding morph deltas into targetGeom channels within the file). Either way, your rubberband model will need to be a CR2 and not a PP2 to have morphs. Kuroyume

Actually any geometry can have a morph, CR2 or PP2. For the hat/feathers: They was made in Anim8or, imported into Poser, assembled, sized and saved. Then Exported back out and imported back into Anim8or for the morphs to be made. Then the origianaly saved PP2 was opened in Poser and the new morphs applied. For the 'rubber band': Not really a rubber band nor a morph. Just used the Poser primative Tarus and adjusted the X-scale and Z-scale.

Anyway, to make a morphing rubber band, you need to make TWO. First you make one rubber band the way you want it to look "unmorphed", then save that as an obj. When that's done you start pulling it, either in Poser with the magnets or in your preferred modeling program. When you've pulled it to its extent you save THAT one as another obj. Then in Poser import the first obj and with that loaded choose to apply a morph. Select the second rubber band as morph target and you're set. Save the morphing rubber band to your props palette. Easy :o)

Just to add a bit to TrekkieGrrrl's excellent answer. When you create the morph, it's worth having two of the objects in the scene. Especially if it's for an animation. Use one as a reference that you don't change or move. The second one you morph and you can position it so that it morphs the way you want it to. For example, if you wanted to morph the elastic band for a character that was going to flick it, you'd want one end of the band (say the left side) to stay in a fixed position as it stretches. So once you've created the morph, position it so that the left side is in the same position so as you apply the morph it stretches to the right. Hope that makes sense!

Another way of accomplishing this is to load both into Poser at once (after the changes were made), align them to your desire and THEN export the morphtarget out of Poser. That also helps if it is something that changes the overall size of something, as Poser imports it in % of figure height. They will need to be resized so that only the moving part changes. An example of this is my morphing(opening) can. The lid, when opened, makes the can higher than the closed can, so in order to make it look right it is necessary to have both of them inside Poser for alignment.