Pepsi Perfect, using a pre-existing base

I just bought this and want to mod it into a re-usable pepsi perfect bottle

Does anyone have any ideas what to do for the lid? I will probably have to paint the cup too (if the yellow shows up too much).
If I paint it, will Krylon be safe to use for somthing I'll be drinking out of?

A moc if I left it as is,.


Fully desired look:

 

This is good base product to start with.

 

Just trim the top with a knife and fill it with putty. What's the brand name of the product? I assume you got it from a dollar store or something.

 

It's a suviner cup on I found on ebay for 8 bucks. What kind of puddy would be good? What about gluing the top? I does look better, any idea about the straw part tho? hmm

 

I'd love to find one of these

 

They also made these at Universal Studios at the Terminator ride back in the early 2000's. They are WAY bigger than the real props but the same shape.

 

I checked with someone who owns a replica one and this one appears to be a little larger. I'll have to check when I get it tho

 

got the bottle today! Trying to figure out how to remove the decal from the cup