My DS has a love of cream too, and finds it anywhere.
Lip cream is his favourite, but goes all over him, not just his lips. He's painted himself & the bathroom in vaseline (that was fun to clean off as its so oily) etc.
He goes to daycare one day a week and a fews weeks ago the carer told me that Ben had needed to do a wee at rest time, so she told him "go do a wee, I'll come and check on you in a minute", which is normal cos he's toileting independently now. She went in a minute later to find him lathering himself in nappy rash cream from the change table. Finding the cream became more exciting than doing a wee!!
I guess in hindsight its very amusing, just the clean up's not as funny.
Ben 25/10/06 + Erin 10/9/08