According to slime pro Lexi, it looked like Megan and Vaughan "probably added too much shaving foam and too much borax".
Another tip - which most slime pros already know about, duh Megan - is to add hand moisturiser and make sure the borax is mixed with water rather than added in powder form.
Thanks to the kids, Fletch, Vaughan and Megan were eventually able to produce slime worth selling. Dubbed "ZliMe" and marketed with a snazzy infomercial, the limited edition product is available on Trade Me with a current top bid of $98.
Before you hit Place Bid, however, there are some key things to note about the product according to its creators:
• Purchasing ZliMe will up your cool factor by about 45 per cent
• The amount of ZliMe received by the winning bidder is unknown
• ZliMe is able to be purchased with Bitcoin
• You cannot purchase the slime for $50 and an upgrade to your Ed Sheeran tickets
• ZliMe will not be traded for body parts or Honda Civics lowered in your mate's garage on crate day
How to make "safe slime" - a recipe with no nasties from Dr Dave Warren
• Make a borax solution by combining 1tsp of borax with 4 cups of water
• Mix equal amounts of good quality PVA glue (from an art shop is best) and the borax solution in a ziplock bag or plastic cup for a few minutes (ziplock bag means less mess)
• If you want a tougher, more stretchy slime add corn flour, 1tsp at a time
• You can also make a bouncy ball by putting the slime inside a balloon and tying a knot
• Don't forget the safety glasses
- Additional reporting, Brittany Keogh