Bags don't work for parties here IME, combusters in this part of the world are not gonna be impressed with a vape if it isn't whitewalling a piece and giving them a lungbusting, hot hit. Most of them are used to combusting with tobacco and are used to an asphyxiant hit (all of the carbonyls plus some of the PAH's and VOC's) being released by combustion, especially if they are smoking bongs! being the main hit they are getting.
We can argue that this headier, clearer effect is better when vaping, and I would agree:
But remember that if you wanna convince someone to stop doing what they do for another method, they need to be getting the effect that THEY SEEK to be assured that the new device works - in other words, if they get a heady effect they don't recognize at all, that doesn't feel quite so immediate and such a drastic change of feeling, they might be inclined to think that 'vaping doesn't work'. Especially if they have been drinking already and may not notice quite how much effect that headiness does have!
Most people in this part of the world are used to a lower THC, more CBN and plant material effect from combusting buds that were harvested immature and then improperly cured and even more improperly stored for long term (let alone the inevitable nasties that come from these last two practices!). Most of the effect they are getting is not the heady effect that we seek, it is a super sleepy chokeout (almost literally!) couchlock effect.
So to the OP - here is the burning question (pun very much intended):
Which region of the world are you in? With this information, we can really work out how best to have local combusters happy with a party vape and potentially even interested in changing all of their combustion habits to vaping