Eddie is gorgeous. When I want a urine sample I pop my pig in the bath. That way they can move about and do not end up sitting in the wee. You may like to try that? Then you just wipe the test stick in the wee.
If it's any help I've read cucumber is meant to be good when trying for a wee sample!
And I love the photo really made me giggle. I must say I'm impressed with the icecream box none of mine would stay in there for more than a second!