We've made our own Chemistree at school this week.
first step: fix on a stand all types of glassware: beakers, conical flasks, rounded bottom flasks, test tubes, boiling tubes, measuring cylinders, pear shaped flasks
next, fill them with indicators
and add a touch of colour by adding various acids and alkalis
and voila
I wish you all a Merry Christmas
and a Scientifically Happy New Year!