How Many Party Bag Fillers Do I Need? Quantities, Costs & Tips

One of the practical questions that comes up when planning party bags is simply: how many fillers do I need, how much do they cost in total, and how do I avoid running out? This guide answers all three.

How Many Party Bag Fillers Per Child?

The honest answer: 2–4 items per child, plus optionally a small sweet. That's the right number if you're choosing items with purpose.

The temptation is to fill the bag until it looks full. The problem with that approach is that you end up buying large quantities of cheap items to hit volume — and the cheap items are the ones parents quietly remove before they cause chaos. A bag that's two-thirds full with two well-chosen items is better than a stuffed bag where half the contents are forgotten within 24 hours.

The reliable formula

• 1 activity item — a toy, game, craft kit or something the child will do (not just own)
• 1 consumable — a sticker sheet, seed packet, temporary tattoo sheet or small sweet
• Optional: 1 bonus item — a small second toy or themed item if budget allows

That's three items maximum. It's enough.

Party Bag Quantities: How to Calculate

Buy for confirmed attendees plus 10–15% extra. Children cancel at the last minute; you also want a few spares in case a sibling is brought along or a bag gets damaged.

Confirmed guests	Order quantity
10	12
15	17–18
20	23
25	28–29
30	34–35

How Much Do Party Bags Cost?

Here's a realistic cost breakdown by budget:

£2 per child

Tight but achievable. One small activity item (70p–£1.20) + one sticker sheet or mini bubbles (40–60p) + a few sweets. Works best if you buy items that come in multi-packs — buying 24 animal erasers at £4 is 17p each; they feel much more generous than the price suggests.

£3–4 per child

The sweet spot. One good activity item (£1.50–2.50) + one consumable (50p–£1) + one bonus small item. At this level you can include a small craft kit or decent toy without the bag feeling thin.

£5–8 per child

Comfortable. A proper craft kit as the hero item (£3–4) + two smaller items. At this budget, a RecycleMe kit or Clockwork Soldier model as the main gift creates a memorable bag. Suitable for smaller guest lists (under 15) where cost per head is manageable.

£8–12 per child

Premium. A single quality toy or activity set as the sole item, in a nice bag. Works for very small parties (under 10 guests) or where the party bag is positioned as a keepsake gift rather than a bag of bits.

Multi-Pack Economics: How to Get More Value

The most cost-effective party bag fillers are items that come in multi-packs. Buying 24 at once costs significantly less per unit than buying individual items. Examples:

• Animal erasers — typically sold in packs of 12 or 24. Per-unit cost is very low; they look and feel much more substantial than the price.
• Temporary tattoo sheets — one A5 sheet per child, typically 25p–60p each in bulk
• Mini bubbles — one tube per child, typically 30–50p each in packs
• Seed packets — wildflower seed packets at 50–80p each feel premium even though they're affordable
• Sticker sheets — 15–30p each in bulk

Age-Appropriate Quantities

Younger children (under 5) are less aware of how many items are in the bag — presentation matters more than quantity. A beautifully presented bag with two or three items will be received as well as a stuffed one. For older children (8+), a smaller number of better-quality items is preferable to many cheap ones.

When to Assemble Party Bags

The day before is ideal. Assembling bags the morning of the party while trying to set up decorations and manage an excited child is stressful and leads to mistakes. Do it in a calm evening the night before, lay out all your items in advance, and work through the bags assembly-line style.

Do You Need to Do Party Bags at All?

Worth asking. Some parents are moving away from traditional party bags entirely, replacing them with one activity the children do together (a craft they take home) or a small donation to a charity in the child's name. Both are accepted and appreciated by most parents — no one has ever complained about not receiving a bag of plastic novelties.

If you want to acknowledge guests without a traditional bag, a single well-chosen item (a wildflower seed packet, a small book, a craft kit) handed out at the door is received as well or better than a stuffed bag of mixed items.

Browse our full party bag fillers range for ideas across all ages and budgets — everything from 30p sticker sheets to £4 craft kits.