I've taken both poppers and lube in my carry on, I had no issues. Both bottles were small though, the sample size for lube probably no more then 3oz or so maybe a bit more. I had labels on my poppers and lube and nothing. As long as the bottles are the right size you should be okay. No one says you have to bring only one small bottle of lube, take a couple along.
Never did the dildos though, but if they are soft as RT stated and you pack it in the case in between clothes I dont' see why they would have an issue, but be ready for a search just in case, could be embarrising if TSA stops you to search your bag.