PS: What do you mean with glowstick?
And the Rainbow physgun was only obtainable for a certain period of time when Alaskan was doing a special deal. Maybe if you contact him personally (Through PM) you MIGHT be able to obtain it if he offers you some kind of deal.
We had a temporary deal where if you donated $10 or over, within a two and a half hour time frame, you would get a rare glow stick item.
Also Alaskan has a deal until the 7th where any donation $10 or over will get you a rainbow physgun.
As Nick said, it's best that you PM Alaskan and see what kind of deal you can work out.