If its POWDER, you should be pretty OK. Those will just be some chocolatey powerballs. You might need to add a bit more honey, tahini and water.
Have you made these before? Do you know the basic consistency you are looking for? I'd say go for it with what you have and if you need to add some more honey and other "wet" ingredients or sweet ingredients just wing it.
You're only given a little spark of madness. You mustn't lose it. Robin Williams