I picked up this set of 7 assorted color Varsity Disposable Fountain pens from Amazon, they also come in 3-pack (Black, Blue & Purple). At the time of purchase, the 7-pack was just under $20 US
Teal, Purple, Pink, Green, Red, Blue & Black
No dry time makes these pens a nice option to ball point.
For anyone curious about the sustainability of this product, although these are noted as Disposable, there is a way to re-fill them with an ink-dropper by pulling the entire nib housing out of the pen. I personally have not tried to do this to any of the pens, yet, but have seen several reviews of these being successfully refilled and used without leaking (always an encouraging thing to hear).