Gifts to go with bouquets in Bangkok: a card, a bear, a gift opened later
Thai gift-giving uses the right hand, and the giver usually leaves before the paper comes off. Gifts to go with bouquets in Bangkok are chosen with that pause in mind. The card tucked among the stems is the first thing read, while the box itself waits until the courier has gone.
A card or a topper for a gift that is opened after the handover
A card written in your own words comes free with any order, and ready-made greeting cards made for bouquets cover the days when nothing comes to mind. A topper carries the same message in fewer words: a short line printed on a card fixed to a pick, set among the flowers rather than sealed inside an envelope.
The bouquet is handed over in person, card attached, and the courier adds nothing beyond what the sender asked for. Since the gift opens after the courier has gone, the card, signed or anonymous, is what explains it.
A plush bear for the degree day, a booked act for the dinner
Thai graduates are given bouquets, plush bears and balloons on graduation day. Chulalongkorn University now asks guests not to bring balloons or decorations that turn into litter once the ceremony ends. That is a fair cue for choosing elsewhere too: a bear stays on a shelf for years, while a balloon suits a party at home better than a graduation ceremony.
A booked act works differently from a wrapped gift, because nobody hands it over: it simply arrives. Entertainers such as a soap bubble show are booked for a moment rather than carried in a box. For a restaurant dinner the time is agreed with the venue's manager, so the delivery arrives with dessert, a toast or someone stepping up on stage.
Cocoa butter melts at 34–38 °C, and Bangkok's April heat brings afternoons of around 36 °C, so chocolate is handed over in person and taken straight indoors.

Gifts sorted by recipient let you start from the person rather than the object. A reed diffuser, a decorative candle or a vase are things the recipient sets out at home once the parcel is open, not props for a single evening.
Unlike a balloon, which goes flat within days, a diffuser or a candle stays in the room for weeks, carrying on the thought behind the flowers long after the vase is empty.

Add-ons such as a balloon, a box of sweets, a plush bear or a vase join the bouquet in the same order, so gift delivery with flowers in Bangkok happens in one visit from the courier. The florist photographs everything before leaving, most orders go out the same day they are placed, and delivery zones are listed on a separate page.
The easiest place to start is with the words: greeting cards made for bouquets cover most occasions already, and a topper suits a shorter line. Where the moment itself is the gift, Entertainers can be booked alongside the flowers, and for something that stays in the room afterwards, reed diffusers are an easy place to look next.