Ok, Jonny's turn to give his opinion!!
Weapon Recolors - Genius idea, it would be pretty legit to walk around with a light blue soda popper and sandman.
Jetpack for VIP - The idea is good, might get you some buyers, but it will also get you some haters. By this I mean that people will get angry and annoyed after the jetpack was removed. I myself wouldn't enjoy it, since I compete for the top 20. This will also make noclip kinda useless when you are outside the map. If you fall out, you are stuck and must kill yourself. So I don't think you should take the risk with this one and maybe lose players.
Resizing - I will be honest. Dumb and useless. I mean ok, it would be cool to walk around seeing giant headded scouts, but after a couple days, it will get old. It will also get really annoying to people because it would get in the way of our view. Unless you guys want to add a limit to how big you can make your head and body, I'm not to sure about this one.
Unusual Weapon Effect - Another great idea, this sounds pretty cool. Would be nice to have a beams sun-on-a-stick! But This + Unusual hat effect + colored weapons, not a bit too much..? No lag issues or anything? I think it might be too much, but other than that, great idea.
Shorter RTD time - This is a great idea overall. But I honestly dont think people would spend real life money on just removing 30 seconds from wait time. Unless you want to cut it down some more, It might be difficult to get some buyers just for this.
Now, if you combined all these into one VIP package offer, that would be great. That would definitely get you buyers.
Or you can spread them out to different packages. Such as Silver accounts gets these, gold gets these, etc etc.